historical sources research paper

Explore millions of high-quality primary sources and images from around the world, including artworks, maps, photographs, and more.

Explore migration issues through a variety of media types

• Part of The Streets are Talking: Public Forms of Creative Expression from Around the World
• Part of The Journal of Economic Perspectives, Vol. 34, No. 1 (Winter 2020)
• Part of Cato Institute (Aug. 3, 2021)
• Part of University of California Press
• Part of Open: Smithsonian National Museum of African American History & Culture
• Part of Indiana Journal of Global Legal Studies, Vol. 19, No. 1 (Winter 2012)
• Part of R Street Institute (Nov. 1, 2020)
• Part of Leuven University Press
• Part of UN Secretary-General Papers: Ban Ki-moon (2007-2016)
• Part of Perspectives on Terrorism, Vol. 12, No. 4 (August 2018)
• Part of Leveraging Lives: Serbia and Illegal Tunisian Migration to Europe, Carnegie Endowment for International Peace (Mar. 1, 2023)
• Part of UCL Press

Harness the power of visual materials—explore more than 3 million images now on JSTOR.

Enhance your scholarly research with underground newspapers, magazines, and journals.

Explore collections in the arts, sciences, and literature from the world’s leading museums, archives, and scholars.

Search Google Appliance

• Online Book Collections
• Online Books by Topic
• Biodiversity Heritage Library
• Library Catalog (SIRIS)
• Image Gallery
• Art & Artist Files
• Caldwell Lighting
• Trade Literature
• All Digital Collections
• Current Exhibitions
• Online Exhibitions
• Past Exhibitions
• Index of Library & Archival Exhibitions on the Web
• Research Tools and OneSearch
• E-journals, E-books, and Databases
• Smithsonian Research Online (SRO)
• Borrowing and Access Privileges
• Smithsonian Libraries and Archives on PRISM (SI staff)
• E-news Sign Up
• Internships and Fellowships
• Work with Us
• About the Libraries
• Library Locations
• Departments
• History of the Libraries
• Advisory Board
• Annual Reports
• Adopt-a-Book
• Ways to Give
• Gifts-in-Kind

You are here

Databases for history and culture research.

• General History andCulture Resources

Historic Newspaper Resources

• Biography and Genealogy Resources

This list highlights some of the history and culture databases available to researchers from the Smithsonian Libraries and Archives. A complete listing of electronic resources is located on the Libraries and Archives'  E-journals, E-books, and Databases . Databases that require SI network for access are indicated by "SI staff." For information about remote access see  Off-Site Access to Electronic Resources​ .

General History and Culture Resources

• Archives Unbound  (SI Staff): Presents topically-focused digital collections of historical documents that cover a broad range of topics from the Middle Ages to the 20th century.
• American Civil War: Letters and Diaries  (SI Staff): Contains  over 2,000 authors and approximately 100,000 pages of diaries, letters and memoirs, presenting viewpoints and first-hand accounts from people on both sides of the conflict.
• Gale Cengage Databases  (SI Staff): Search across more than 30 Gale databases at the same time, including American and foreign newspapers (some historical, some current), as well as a variety of U.S. and international history sources.
• JSTOR  (SI Staff): Full-text searchable articles from more than 500 scholarly journals in the arts and humanities, economics and politics, mathematics and other fields of study. 
• North American Immigrant Letters, Diaries and Oral Histories  (SI Staff):  Includes over 2,100 authors and approximately 100,000 pages of information, providing a unique and personal view of what it meant to immigrate to America and Canada between 1800 and 1950.
• North American Women's Letters and Diaries  (SI Staff):  I ncludes the immediate experiences of 1,325 women and 150,000 pages of diaries and letters. The collection also includes biographies and an extensive annotated bibliography of the sources in the database.
• Project Muse  (SI Staff): Provides full-text access to hundreds of high quality, peer-reviewed journals from non-profit scholarly publishers, including university presses and societies, covering a wide variety of disciplines.
• ProQuest  (SI Staff): Search across all available ProQuest different databases at once or select specific ones to search, including American Periodicals, Ethnic NewsWatch, Women's Magazine Archive, and historical newspapers such as the Washington Post, New York Times , Los Angeles Times , and Chicago Defender .
• Smithsonian Collections Online (Gale Cengage) (SI Staff):  Online archive of  Smithsonian  and Air & Space Magazine  issues, as well as online access to selected trade catalogs and World's Fair materials from Smithsonian collections.
• African American Newspapers (1827-1998)   (SI Staff) :  Covers life in the Antebellum South through the Civil Rights movement and more.
• Chronicling America: Historic American Newspapers :  This resource from the Library of Congress lets you search America's historic newspaper pages from 1789-1924 or use the U.S. Newspaper Directory to find information about American newspapers published between 1690-present.
• Ethnic NewsWatch   (SI Staff) :  Coverage: 1959-present. Included are journals, magazines, and newspapers from ethnic and minority presses. Ethnicities include: African American/Caribbean/African; Arab/Middle Eastern; Asian/Pacific Islander; European/Eastern European; Hispanic; Jewish; Native People.
• Google News Archive :  A list of U.S. and foreign digitized newspapers, arranged alphabetically by title. Coverage varies widely.
• Harper's Weekly 1857-1912   (SI Staff) :  America's leading 19th century illustrated newspaper.
• Atlanta Constitution   (SI Staff) :  Coverage: 1868- 1984
• Atlanta Daily World   (SI Staff) :   Coverage: 1931- 2010
• Baltimore Afro-American   (SI Staff) :   Coverage: 1893- 1988
• Boston Globe   (SI Staff) :   Coverage: 1872- 1989
• Chicago Defender   (SI Staff) :   Coverage: 1909- 2010
• Chicago Tribune   (SI Staff) :   Coverage: 1849- 1997
• Hartford Courant   (SI Staff) :   Coverage: 1764- 1995
• Los Angeles Times   (SI Staff) :   Coverage: 1881- 1996
• New York Amsterdam News   (SI Staff) :   Coverage: 1922- 1993
• New York Times   (SI Staff) :   Coverage: 1851- 2017
• New York Tribune   (SI Staff) :   Coverage: 1841- 1922
• Pittsburgh Courier   (SI Staff) :   Coverage: 1911- 2010
• St. Louis Post-Dispatch   (SI Staff) :   Coverage: 1874- 1922
• Washington Post   (SI Staff) :   Coverage: 1877-2004 (Smithsonian employees can register for a free current digital subscription at  https://wapo.st/34iLbRs )
• Wikipedia List of Online Newspaper Archives :   A listing of both free and pay wall blocked digital newspaper archives from the U.S. and foreign countries.

Biography and Genealogy Resources

• Ancestry Library Edition  (SI Staff): Powered by Ancestry.com, this resource offers access to billions of records for genealogical research.
• American National Biography Online  (SI Staff): Offers portraits of more than 19,000 men and women, from all eras and walks of life, whose lives have shaped the nation. 
• Biography and Genealogy Master Index  (SI Staff):   Indexes current, easily accessible references sources to help find biographical material on people from all time periods, geographic locations, and fields of endeavor.
•   FamilySearch : For over 100 years, FamilySearch has been actively gathering, preserving, and sharing genealogical records worldwide.
•   Fold3  (SI Staff): Provides access to military records, including the stories, photos, and personal documents of the men and women who served. Also includes some census records and selected other non-military materials.

Comprehensive Guide to Historical Research Methods

Historical research is a meticulous process that involves the exploration and analysis of past events, societies, and cultures. This comprehensive guide aims to assist researchers and historians in navigating the intricate landscape of historical research. From understanding different methodologies to utilizing archival resources effectively, this guide provides valuable insights into the diverse approaches to historical inquiry.

Section 1: Overview of Historical Research Methodologies

1.1 Historiography and Approaches:

• Explanation of major historiographical approaches (e.g., social history, cultural history, political history) and their significance in shaping historical research.

1.2 Comparative History:

• Exploration of the comparative method in historical research, highlighting its uses in identifying patterns, differences, and causal relationships across different contexts.

1.3 Quantitative and Qualitative Methods:

• Differentiation between quantitative and qualitative historical research methods, with examples of how each can be applied to historical inquiries.

Section 2: Conducting Archival Research

2.1 Introduction to Archival Research:

• Definition and importance of archival research in historical studies, emphasizing the role of primary sources in reconstructing the past.

2.2 Selecting Archives and Repositories:

• Guidance on choosing the right archives and repositories based on research goals, with a focus on both physical and digital collections.

2.3 Effective Use of Primary Sources:

• Tips on extracting valuable information from primary sources, including letters, diaries, newspapers, and official documents.

2.4 Paleography and Manuscript Analysis:

• Introduction to paleography (the study of ancient handwriting) and techniques for analyzing handwritten documents and manuscripts.

Section 3: Analyzing Historical Documents

3.1 Critical Source Analysis:

• Techniques for critically evaluating historical sources, considering factors such as authorship, context, bias, and reliability.

3.2 Content Analysis:

• Overview of content analysis methods for systematically examining and interpreting the content of historical documents.

3.3 Historical GIS (Geographic Information Systems):

• Introduction to GIS applications in historical research, illustrating how spatial analysis can enhance the understanding of historical events and patterns.

Section 4: Writing and Presenting Historical Research

4.1 Structure of Historical Research Papers:

• Guidelines for structuring a historical research paper, including the introduction, literature review, methodology, analysis, and conclusion.

4.2 Citation Styles in Historical Research:

• Overview of common citation styles used in historical research, such as Chicago, MLA, and APA, with examples and guidelines.

4.3 Effective Presentation of Historical Findings:

• Tips for presenting historical research in various formats, including academic articles, presentations, and exhibitions.

Conclusion:

This comprehensive guide aims to empower researchers and historians with the tools and knowledge needed to conduct robust historical research. By understanding the diverse methodologies and utilizing archival resources effectively, scholars can contribute meaningfully to the ongoing dialogue about the past.

Related Guides

Princeton Correspondents on Undergraduate Research

How to Write a History Research Paper

In my last post, I shared some tips on how to conduct research in history and emphasized that researchers should keep in mind a source’s category (transcript, court document, speech, etc.). This post is something of a sequel to that, as I will share some thoughts on what often follows primary-source research: a history research paper. 

1. Background Reading   The first step to a history research paper is of course, background reading and research. In the context of a class assignment, “background reading” might simply be course readings or lectures, but for independent work, this step will likely involve some quality time on your own in the library. During the background reading phase of your project, keep an eye out for intriguing angles to approach your topic from and any trends that you see across sources (both primary and secondary).

2. T hemes and Context Recounting the simple facts about your topic alone will not make for a successful research paper. One must grasp both the details of events as well as the larger, thematic context of the time period in which they occurred. What’s the scholarly consensus about these themes? Does that consensus seem right to you, after having done primary and secondary research of your own?

3. Develop an Argument  Grappling with answers to the above questions will get you thinking about your emerging argument. For shorter papers, you might identify a gap in the scholarship or come up with an argumentative response to a class prompt rather quickly. Remember: as an undergraduate, you don’t have to come up with (to borrow Philosophy Professor Gideon Rosen’s phrase) ‘a blindingly original theory of everything.’ In other words, finding a nuanced thesis does not mean you have to disprove some famous scholar’s work in its entirety. But, if you’re having trouble defining your thesis, I encourage you not to worry; talk to your professor, preceptor, or, if appropriate, a friend. These people can listen to your ideas, and the simple act of talking about your paper can often go a long way in helping you realize what you want to write about.

4. Outline Your Argument  With a history paper specifically, one is often writing about a sequence of events and trying to tell a story about what happened. Roughly speaking, your thesis is your interpretation of these events, or your take on some aspect of them (i.e. the role of women in New Deal programs). Before opening up Word, I suggest writing down the stages of your argument. Then, outline or organize your notes to know what evidence you’ll use in each of these various stages. If you think your evidence is solid, then you’re probably ready to start writing—and you now have a solid roadmap to work from! But, if this step is proving difficult, you might want to gather more evidence or go back to the thesis drawing board and look for a better angle. I often find myself somewhere between these two extremes (being 100% ready to write or staring at a sparse outline), but that’s also helpful, because it gives me a better idea of where my argument needs strengthening.

5. Prepare Yourself   Once you have some sort of direction for the paper (i.e. a working thesis), you’re getting close to the fun part—the writing itself. Gather your laptop, your research materials/notes, and some snacks, and get ready to settle in to write your paper, following your argument outline. As mentioned in the photo caption, I suggest utilizing large library tables to spread out your notes. This way, you don’t have to constantly flip through binders, notebooks, and printed drafts.

In addition to this step by step approach, I’ll leave you with a few last general tips for approaching a history research paper. Overall, set reasonable goals for your project, and remember that a seemingly daunting task can be broken down into the above constituent phases. And, if nothing else, know that you’ll end up with a nice Word document full of aesthetically pleasing footnotes!

— Shanon FitzGerald, Social Sciences Correspondent

Share this:

• Share on Tumblr

What is a History Paper?

A history paper–just like a paper in any specific academic discipline–has its own unique traits and guidelines.  Several different types of papers may be assigned in a history course, including book reviews, primary source analyses, synthesis essays and research papers.  Research papers allow you to do the exciting work of historians, studying material from the past and making your own original argument.  The following list outlines the key components of a research paper in the field of history.

Download as PDF

6265 Bunche Hall Box 951473 University of California, Los Angeles Los Angeles, CA 90095-1473 Phone: (310) 825-4601

Other Resources

• UCLA Library
• Faculty Intranet
• Department Forms
• Office 365 Email
• Remote Help

Campus Resources

• Maps, Directions, Parking
• Academic Calendar
• University of California
• Terms of Use

Social Sciences Division Departments

• Aerospace Studies
• African American Studies
• American Indian Studies
• Anthropology
• Archaeology
• Asian American Studies
• César E. Chávez Department of Chicana & Chicano Studies
• Communication
• Conservation
• Gender Studies
• Military Science
• Naval Science
• Political Science

How to Write a History Research Paper

• How do I pick a topic?
• But I can’t find any material…

Research Guide

Writing guide.

See also: How to Write a Good History Essay

1. How do I pick a topic?

Picking a topic is perhaps the most important step in writing a research paper. To do it well requires several steps of refinement. First you have to determine a general area in which you have an interest (if you aren’t interested, your readers won’t be either). You do not write a paper “about the Civil War,” however, for that is such a large and vague concept that the paper will be too shallow or you will be swamped with information. The next step is to narrow your topic. Are you interested in comparison? battles? social change? politics? causes? biography? Once you reach this stage try to formulate your research topic as a question. For example, suppose that you decide to write a paper on the use of the films of the 1930’s and what they can tell historians about the Great Depression. You might turn that into the following question: “What are the primary values expressed in films of the 1930’s?” Or you might ask a quite different question, “What is the standard of living portrayed in films of the 1930’s?” There are other questions, of course, which you could have asked, but these two clearly illustrate how different two papers on the same general subject might be. By asking yourself a question as a means of starting research on a topic you will help yourself find the answers. You also open the door to loading the evidence one way or another. It will help you decide what kinds of evidence might be pertinent to your question, and it can also twist perceptions of a topic. For example, if you ask a question about economics as motivation, you are not likely to learn much about ideals, and vice versa.

2. But I can’t find any material…

No one should pick a topic without trying to figure out how one could discover pertinent information, nor should anyone settle on a topic before getting some background information about the general area. These two checks should make sure your paper is in the realm of the possible. The trick of good research is detective work and imaginative thinking on how one can find information. First try to figure out what kinds of things you should know about a topic to answer your research question. Are there statistics? Do you need personal letters? What background information should be included? Then if you do not know how to find that particular kind of information, ASK . A reference librarian or professor is much more likely to be able to steer you to the right sources if you can ask a specific question such as “Where can I find statistics on the number of interracial marriages?” than if you say “What can you find on racial attitudes?”

Use the footnotes and bibliographies of general background books as well as reference aids to lead you to special studies. If Carleton does not have the books or sources you need, try ordering through the library minitex. Many sources are also available on-line.

As your research paper takes shape you will find that you need background on people, places, events, etc. Do not just rely on some general survey for all of your background. Check the several good dictionaries of biography for background on people, or see if there is a standard book-length biography. If you are dealing with a legal matter check into the background of the judges who make the court decision and the circumstances surrounding the original incident or law. Try looking for public opinions in newspapers of the time. In other words, each bit of information you find should open the possibility of other research paths.

Learn to use several research techniques. You cannot count on a good research paper coming from browsing on one shelf at the library. A really pertinent book may be hidden in another section of the library due to classification quirks. The Readers’ Guide (Ref. A13 .R4) is not the only source for magazine articles, nor the card catalog for books. There are whole books which are listings of other books on particular topics. There are specialized indexes of magazine articles. Modern History Journals are indexed in the Social Studies and Humanities Index (Ref. A13 .R282) before 1976 After 1976 use the Social Sciences Index (REF A13 .S62) and the Humanities Index (Ref. A13 .H85). See also Historical Abstracts (Ref. D1 .H5). Reference Librarians would love to help you learn to use these research tools. It pays to browse in the reference room at the library and poke into the guides which are on the shelves. It also pays to browse the Internet.

3. Help! How do I put this together?

A. preliminary research:.

If you do not already have a general background on your topic, get the most recent good general source on the topic and read it for general orientation. On the basis of that reading formulate as clearly focused question as you can. You should generally discuss with your professor at that point whether your question is a feasible one.

B. Building a Basic Bibliography:

Use the bibliography/notes in your first general source, MUSE, and especially Historical Abstracts on cd-rom in the Library Reading Room (the computer farthest to the left in the front row as you walk past the Reference Desk — or ask there). If there is a specialized bibliography on your topic, you will certainly want to consult that as well, but these are often a bit dated.

C. Building a Full Bibliography:

Read the recent articles or chapters that seem to focus on your topic best. This will allow you to focus your research question quite a bit. Use the sources cited and/or discussed in this reading to build a full bibliography. Use such tools as Historical Abstracts (or, depending on your topic, the abstracts from a different field) and a large, convenient computer-based national library catalog (e.g. the University of California system from the “Libs” command in your VAX account or the smaller University of Minnesota library through MUSE) to check out your sources fully. For specific article searches “Uncover” (press returns for the “open access”) or possibly (less likely for history) “First Search” through “Connect to Other Resources” in MUSE can also be useful.

D. Major Research:

Now do the bulk of your research. But do not overdo it. Do not fall into the trap of reading and reading to avoid getting started on the writing. After you have the bulk of information you might need, start writing. You can fill in the smaller gaps of your research more effectively later.

A. Outline:

Write a preliminary thesis statement, expressing what you believe your major argument(s) will be. Sketch out a broad outline that indicates the structure — main points and subpoints or your argument as it seems at this time. Do not get too detailed at this point.

B. The First Draft:

On the basis of this thesis statement and outline, start writing, even pieces, as soon as you have enough information to start. Do not wait until you have filled all the research gaps. Keep on writing. If you run into smaller research questions just mark the text with a searchable symbol. It is important that you try to get to the end point of this writing as soon as possible, even if you leave pieces still in outline form at first and then fill the gaps after you get to the end.

Critical advice for larger papers: It is often more effective not to start at the point where the beginning of your paper will be. Especially the introductory paragraph is often best left until later, when you feel ready and inspired.

C. The Second Draft:

The “second draft” is a fully re-thought and rewritten version of your paper. It is at the heart of the writing process.

First, lay your first draft aside for a day or so to gain distance from it. After that break, read it over with a critical eye as you would somebody else’s paper (well, almost!). You will probably find that your first draft is still quite descriptive, rather than argumentative. It is likely to wander; your perspective and usually even the thesis seemed to change/develop as you wrote. Don’t despair. That is perfectly normal even for experienced writers (even after 40 years and a good deal of published work!). You will be frustrated. But keep questioning your paper along the following lines: What precisely are my key questions? What parts of my evidence here are really pertinent to those questions (that is, does it help me answer them)? How or in what order can I structure my paper most effectively to answer those questions most clearly and efficiently for my reader?

At this point you must outline your paper freshly. Mark up your first draft, ask tough questions whether your argument is clear and whether the order in which you present your points is effective! You must write conceptually a new paper at this point, even if you can use paragraphs and especially quotes, factual data in the new draft.

It is critical that in your new draft your paragraphs start with topic sentences that identify the argument you will be making in the particular paragraph (sometimes this can be strings of two or three paragraphs). The individual steps in your argument must be clearly reflected in the topic sentences of your paragraphs (or a couple of them linked).

D. The Third or Final Draft:

You are now ready to check for basic rules of good writing. This is when you need to check the diction, that is, the accuracy and suitability of words. Eliminate unnecessary passive or awkward noun constructions (active-voice, verbal constructions are usually more effective); improve the flow of your transitions; avoid repetitions or split infinitives; correct apostrophes in possessives and such. Make the style clear and smooth. Check that the start of your paper is interesting for the reader. Last but not least, cut out unnecessary verbiage and wordiness. Spell-check and proof-read.

– Diethelm Prowe, 1998

A Step-by-Step Guide to Doing Historical Research [without getting hysterical!] In addition to being a scholarly investigation, research is a social activity intended to create new knowledge. Historical research is your informed response to the questions that you ask while examining the record of human experience. These questions may concern such elements as looking at an event or topic, examining events that lead to the event in question, social influences, key players, and other contextual information. This step-by-step guide progresses from an introduction to historical resources to information about how to identify a topic, craft a thesis and develop a research paper. Table of contents: The Range and Richness of Historical Sources Secondary Sources Primary Sources Historical Analysis What is it? Who, When, Where, What and Why: The Five "W"s Topic, Thesis, Sources Definition of Terms Choose a Topic Craft a Thesis Evaluate Thesis and Sources A Variety of Information Sources Take Efficient Notes Note Cards Thinking, Organizing, Researching Parenthetical Documentation Prepare a Works Cited Page Drafting, Revising, Rewriting, Rethinking For Further Reading: Works Cited Additional Links So you want to study history?! Tons of help and links Slatta Home Page Use the Writing and other links on the lefhand menu I. The Range and Richness of Historical Sources Back to Top Every period leaves traces, what historians call "sources" or evidence. Some are more credible or carry more weight than others; judging the differences is a vital skill developed by good historians. Sources vary in perspective, so knowing who created the information you are examining is vital. Anonymous doesn't make for a very compelling source. For example, an FBI report on the antiwar movement, prepared for U.S. President Richard Nixon, probably contained secrets that at the time were thought to have affected national security. It would not be usual, however, for a journalist's article about a campus riot, featured in a local newspaper, to leak top secret information. Which source would you read? It depends on your research topic. If you're studying how government officials portrayed student activists, you'll want to read the FBI report and many more documents from other government agencies such as the CIA and the National Security Council. If you're investigating contemporary opinion of pro-war and anti-war activists, local newspaper accounts provide a rich resource. You'd want to read a variety of newspapers to ensure you're covering a wide range of opinions (rural/urban, left/right, North/South, Soldier/Draft-dodger, etc). Historians classify sources into two major categories: primary and secondary sources. Secondary Sources Back to Top Definition: Secondary sources are created by someone who was either not present when the event occurred or removed from it in time. We use secondary sources for overview information, to familiarize ourselves with a topic, and compare that topic with other events in history. In refining a research topic, we often begin with secondary sources. This helps us identify gaps or conflicts in the existing scholarly literature that might prove promsing topics. Types: History books, encyclopedias, historical dictionaries, and academic (scholarly) articles are secondary sources. To help you determine the status of a given secondary source, see How to identify and nagivate scholarly literature . Examples: Historian Marilyn Young's (NYU) book about the Vietnam War is a secondary source. She did not participate in the war. Her study is not based on her personal experience but on the evidence she culled from a variety of sources she found in the United States and Vietnam. Primary Sources Back to Top Definition: Primary sources emanate from individuals or groups who participated in or witnessed an event and recorded that event during or immediately after the event. They include speeches, memoirs, diaries, letters, telegrams, emails, proclamations, government documents, and much more. Examples: A student activist during the war writing about protest activities has created a memoir. This would be a primary source because the information is based on her own involvement in the events she describes. Similarly, an antiwar speech is a primary source. So is the arrest record of student protesters. A newspaper editorial or article, reporting on a student demonstration is also a primary source. II. Historical Analysis What is it? Back to Top No matter what you read, whether it's a primary source or a secondary source, you want to know who authored the source (a trusted scholar? A controversial historian? A propagandist? A famous person? An ordinary individual?). "Author" refers to anyone who created information in any medium (film, sound, or text). You also need to know when it was written and the kind of audience the author intend to reach. You should also consider what you bring to the evidence that you examine. Are you inductively following a path of evidence, developing your interpretation based on the sources? Do you have an ax to grind? Did you begin your research deductively, with your mind made up before even seeing the evidence. Historians need to avoid the latter and emulate the former. To read more about the distinction, examine the difference between Intellectual Inquirers and Partisan Ideologues . In the study of history, perspective is everything. A letter written by a twenty- year old Vietnam War protestor will differ greatly from a letter written by a scholar of protest movements. Although the sentiment might be the same, the perspective and influences of these two authors will be worlds apart. Practicing the " 5 Ws " will avoid the confusion of the authority trap. Who, When, Where, What and Why: The Five "W"s Back to Top Historians accumulate evidence (information, including facts, stories, interpretations, opinions, statements, reports, etc.) from a variety of sources (primary and secondary). They must also verify that certain key pieces of information are corroborated by a number of people and sources ("the predonderance of evidence"). The historian poses the " 5 Ws " to every piece of information he examines: Who is the historical actor? When did the event take place? Where did it occur? What did it entail and why did it happen the way it did? The " 5 Ws " can also be used to evaluate a primary source. Who authored the work? When was it created? Where was it created, published, and disseminated? Why was it written (the intended audience), and what is the document about (what points is the author making)? If you know the answers to these five questions, you can analyze any document, and any primary source. The historian doesn't look for the truth, since this presumes there is only one true story. The historian tries to understand a number of competing viewpoints to form his or her own interpretation-- what constitutes the best explanation of what happened and why. By using as wide a range of primary source documents and secondary sources as possible, you will add depth and richness to your historical analysis. The more exposure you, the researcher, have to a number of different sources and differing view points, the more you have a balanced and complete view about a topic in history. This view will spark more questions and ultimately lead you into the quest to unravel more clues about your topic. You are ready to start assembling information for your research paper. III. Topic, Thesis, Sources Definition of Terms Back to Top Because your purpose is to create new knowledge while recognizing those scholars whose existing work has helped you in this pursuit, you are honor bound never to commit the following academic sins: Plagiarism: Literally "kidnapping," involving the use of someone else's words as if they were your own (Gibaldi 6). To avoid plagiarism you must document direct quotations, paraphrases, and original ideas not your own. Recycling: Rehashing material you already know thoroughly or, without your professor's permission, submitting a paper that you have completed for another course. Premature cognitive commitment: Academic jargon for deciding on a thesis too soon and then seeking information to serve that thesis rather than embarking on a genuine search for new knowledge. Choose a Topic Back to Top "Do not hunt for subjects, let them choose you, not you them." --Samuel Butler Choosing a topic is the first step in the pursuit of a thesis. Below is a logical progression from topic to thesis: Close reading of the primary text, aided by secondary sources Growing awareness of interesting qualities within the primary text Choosing a topic for research Asking productive questions that help explore and evaluate a topic Creating a research hypothesis Revising and refining a hypothesis to form a working thesis First, and most important, identify what qualities in the primary or secondary source pique your imagination and curiosity and send you on a search for answers. Bloom's taxonomy of cognitive levels provides a description of productive questions asked by critical thinkers. While the lower levels (knowledge, comprehension) are necessary to a good history essay, aspire to the upper three levels (analysis, synthesis, evaluation). Skimming reference works such as encyclopedias, books, critical essays and periodical articles can help you choose a topic that evolves into a hypothesis, which in turn may lead to a thesis. One approach to skimming involves reading the first paragraph of a secondary source to locate and evaluate the author's thesis. Then for a general idea of the work's organization and major ideas read the first and last sentence of each paragraph. Read the conclusion carefully, as it usually presents a summary (Barnet and Bedau 19). Craft a Thesis Back to Top Very often a chosen topic is too broad for focused research. You must revise it until you have a working hypothesis, that is, a statement of an idea or an approach with respect to the source that could form the basis for your thesis. Remember to not commit too soon to any one hypothesis. Use it as a divining rod or a first step that will take you to new information that may inspire you to revise your hypothesis. Be flexible. Give yourself time to explore possibilities. The hypothesis you create will mature and shift as you write and rewrite your paper. New questions will send you back to old and on to new material. Remember, this is the nature of research--it is more a spiraling or iterative activity than a linear one. Test your working hypothesis to be sure it is: broad enough to promise a variety of resources. narrow enough for you to research in depth. original enough to interest you and your readers. worthwhile enough to offer information and insights of substance "do-able"--sources are available to complete the research. Now it is time to craft your thesis, your revised and refined hypothesis. A thesis is a declarative sentence that: focuses on one well-defined idea makes an arguable assertion; it is capable of being supported prepares your readers for the body of your paper and foreshadows the conclusion. Evaluate Thesis and Sources Back to Top Like your hypothesis, your thesis is not carved in stone. You are in charge. If necessary, revise it during the research process. As you research, continue to evaluate both your thesis for practicality, originality, and promise as a search tool, and secondary sources for relevance and scholarliness. The following are questions to ask during the research process: Are there many journal articles and entire books devoted to the thesis, suggesting that the subject has been covered so thoroughly that there may be nothing new to say? Does the thesis lead to stimulating, new insights? Are appropriate sources available? Is there a variety of sources available so that the bibliography or works cited page will reflect different kinds of sources? Which sources are too broad for my thesis? Which resources are too narrow? Who is the author of the secondary source? Does the critic's background suggest that he/she is qualified? After crafting a thesis, consider one of the following two approaches to writing a research paper: Excited about your thesis and eager to begin? Return to the primary or secondary source to find support for your thesis. Organize ideas and begin writing your first draft. After writing the first draft, have it reviewed by your peers and your instructor. Ponder their suggestions and return to the sources to answer still-open questions. Document facts and opinions from secondary sources. Remember, secondary sources can never substitute for primary sources. Confused about where to start? Use your thesis to guide you to primary and secondary sources. Secondary sources can help you clarify your position and find a direction for your paper. Keep a working bibliography. You may not use all the sources you record, but you cannot be sure which ones you will eventually discard. Create a working outline as you research. This outline will, of course, change as you delve more deeply into your subject. A Variety of Information Sources Back to Top "A mind that is stretched to a new idea never returns to its original dimension." --Oliver Wendell Holmes Your thesis and your working outline are the primary compasses that will help you navigate the variety of sources available. In "Introduction to the Library" (5-6) the MLA Handbook for Writers of Research Papers suggests you become familiar with the library you will be using by: taking a tour or enrolling for a brief introductory lecture referring to the library's publications describing its resources introducing yourself and your project to the reference librarian The MLA Handbook also lists guides for the use of libraries (5), including: Jean Key Gates, Guide to the Use of Libraries and Information Sources (7th ed., New York: McGraw, 1994). Thomas Mann, A Guide to Library Research Methods (New York: Oxford UP, 1987). Online Central Catalog Most libraries have their holdings listed on a computer. The online catalog may offer Internet sites, Web pages and databases that relate to the university's curriculum. It may also include academic journals and online reference books. Below are three search techniques commonly used online: Index Search: Although online catalogs may differ slightly from library to library, the most common listings are by: Subject Search: Enter the author's name for books and article written about the author. Author Search: Enter an author's name for works written by the author, including collections of essays the author may have written about his/her own works. Title Search: Enter a title for the screen to list all the books the library carries with that title. Key Word Search/Full-text Search: A one-word search, e.g., 'Kennedy,' will produce an overwhelming number of sources, as it will call up any entry that includes the name 'Kennedy.' To focus more narrowly on your subject, add one or more key words, e.g., "John Kennedy, Peace Corps." Use precise key words. Boolean Search: Boolean Search techniques use words such as "and," "or," and "not," which clarify the relationship between key words, thus narrowing the search. Take Efficient Notes Back to Top Keeping complete and accurate bibliography and note cards during the research process is a time (and sanity) saving practice. If you have ever needed a book or pages within a book, only to discover that an earlier researcher has failed to return it or torn pages from your source, you understand the need to take good notes. Every researcher has a favorite method for taking notes. Here are some suggestions-- customize one of them for your own use. Bibliography cards There may be far more books and articles listed than you have time to read, so be selective when choosing a reference. Take information from works that clearly relate to your thesis, remembering that you may not use them all. Use a smaller or a different color card from the one used for taking notes. Write a bibliography card for every source. Number the bibliography cards. On the note cards, use the number rather than the author's name and the title. It's faster. Another method for recording a working bibliography, of course, is to create your own database. Adding, removing, and alphabetizing titles is a simple process. Be sure to save often and to create a back-up file. A bibliography card should include all the information a reader needs to locate that particular source for further study. Most of the information required for a book entry (Gibaldi 112): Author's name Title of a part of the book [preface, chapter titles, etc.] Title of the book Name of the editor, translator, or compiler Edition used Number(s) of the volume(s) used Name of the series Place of publication, name of the publisher, and date of publication Page numbers Supplementary bibliographic information and annotations Most of the information required for an article in a periodical (Gibaldi 141): Author's name Title of the article Name of the periodical Series number or name (if relevant) Volume number (for a scholarly journal) Issue number (if needed) Date of publication Page numbers Supplementary information For information on how to cite other sources refer to your So you want to study history page . Note Cards Back to Top Take notes in ink on either uniform note cards (3x5, 4x6, etc.) or uniform slips of paper. Devote each note card to a single topic identified at the top. Write only on one side. Later, you may want to use the back to add notes or personal observations. Include a topical heading for each card. Include the number of the page(s) where you found the information. You will want the page number(s) later for documentation, and you may also want page number(s)to verify your notes. Most novice researchers write down too much. Condense. Abbreviate. You are striving for substance, not quantity. Quote directly from primary sources--but the "meat," not everything. Suggestions for condensing information: Summary: A summary is intended to provide the gist of an essay. Do not weave in the author's choice phrases. Read the information first and then condense the main points in your own words. This practice will help you avoid the copying that leads to plagiarism. Summarizing also helps you both analyze the text you are reading and evaluate its strengths and weaknesses (Barnet and Bedau 13). Outline: Use to identify a series of points. Paraphrase, except for key primary source quotations. Never quote directly from a secondary source, unless the precise wording is essential to your argument. Simplify the language and list the ideas in the same order. A paraphrase is as long as the original. Paraphrasing is helpful when you are struggling with a particularly difficult passage. Be sure to jot down your own insights or flashes of brilliance. Ralph Waldo Emerson warns you to "Look sharply after your thoughts. They come unlooked for, like a new bird seen on your trees, and, if you turn to your usual task, disappear...." To differentiate these insights from those of the source you are reading, initial them as your own. (When the following examples of note cards include the researcher's insights, they will be followed by the initials N. R.) When you have finished researching your thesis and you are ready to write your paper, organize your cards according to topic. Notecards make it easy to shuffle and organize your source information on a table-- or across the floor. Maintain your working outline that includes the note card headings and explores a logical order for presenting them in your paper. IV. Begin Thinking, Researching, Organizing Back to Top Don't be too sequential. Researching, writing, revising is a complex interactive process. Start writing as soon as possible! "The best antidote to writer's block is--to write." (Klauser 15). However, you still feel overwhelmed and are staring at a blank page, you are not alone. Many students find writing the first sentence to be the most daunting part of the entire research process. Be creative. Cluster (Rico 28-49). Clustering is a form of brainstorming. Sometimes called a web, the cluster forms a design that may suggest a natural organization for a paper. Here's a graphical depiction of brainstorming . Like a sun, the generating idea or topic lies at the center of the web. From it radiate words, phrases, sentences and images that in turn attract other words, phrases, sentences and images. Put another way--stay focused. Start with your outline. If clustering is not a technique that works for you, turn to the working outline you created during the research process. Use the outline view of your word processor. If you have not already done so, group your note cards according to topic headings. Compare them to your outline's major points. If necessary, change the outline to correspond with the headings on the note cards. If any area seems weak because of a scarcity of facts or opinions, return to your primary and/or secondary sources for more information or consider deleting that heading. Use your outline to provide balance in your essay. Each major topic should have approximately the same amount of information. Once you have written a working outline, consider two different methods for organizing it. Deduction: A process of development that moves from the general to the specific. You may use this approach to present your findings. However, as noted above, your research and interpretive process should be inductive. Deduction is the most commonly used form of organization for a research paper. The thesis statement is the generalization that leads to the specific support provided by primary and secondary sources. The thesis is stated early in the paper. The body of the paper then proceeds to provide the facts, examples, and analogies that flow logically from that thesis. The thesis contains key words that are reflected in the outline. These key words become a unifying element throughout the paper, as they reappear in the detailed paragraphs that support and develop the thesis. The conclusion of the paper circles back to the thesis, which is now far more meaningful because of the deductive development that supports it. Chronological order A process that follows a traditional time line or sequence of events. A chronological organization is useful for a paper that explores cause and effect. Parenthetical Documentation Back to Top The Works Cited page, a list of primary and secondary sources, is not sufficient documentation to acknowledge the ideas, facts, and opinions you have included within your text. The MLA Handbook for Writers of Research Papers describes an efficient parenthetical style of documentation to be used within the body of your paper. Guidelines for parenthetical documentation: "References to the text must clearly point to specific sources in the list of works cited" (Gibaldi 184). Try to use parenthetical documentation as little as possible. For example, when you cite an entire work, it is preferable to include the author's name in the text. The author's last name followed by the page number is usually enough for an accurate identification of the source in the works cited list. These examples illustrate the most common kinds of documentation. Documenting a quotation: Ex. "The separation from the personal mother is a particularly intense process for a daughter because she has to separate from the one who is the same as herself" (Murdock 17). She may feel abandoned and angry. Note: The author of The Heroine's Journey is listed under Works Cited by the author's name, reversed--Murdock, Maureen. Quoted material is found on page 17 of that book. Parenthetical documentation is after the quotation mark and before the period. Documenting a paraphrase: Ex. In fairy tales a woman who holds the princess captive or who abandons her often needs to be killed (18). Note: The second paraphrase is also from Murdock's book The Heroine's Journey. It is not, however, necessary to repeat the author's name if no other documentation interrupts the two. If the works cited page lists more than one work by the same author, include within the parentheses an abbreviated form of the appropriate title. You may, of course, include the title in your sentence, making it unnecessary to add an abbreviated title in the citation. > Prepare a Works Cited Page Back to Top There are a variety of titles for the page that lists primary and secondary sources (Gibaldi 106-107). A Works Cited page lists those works you have cited within the body of your paper. The reader need only refer to it for the necessary information required for further independent research. Bibliography means literally a description of books. Because your research may involve the use of periodicals, films, art works, photographs, etc. "Works Cited" is a more precise descriptive term than bibliography. An Annotated Bibliography or Annotated Works Cited page offers brief critiques and descriptions of the works listed. A Works Consulted page lists those works you have used but not cited. Avoid using this format. As with other elements of a research paper there are specific guidelines for the placement and the appearance of the Works Cited page. The following guidelines comply with MLA style: The Work Cited page is placed at the end of your paper and numbered consecutively with the body of your paper. Center the title and place it one inch from the top of your page. Do not quote or underline the title. Double space the entire page, both within and between entries. The entries are arranged alphabetically by the author's last name or by the title of the article or book being cited. If the title begins with an article (a, an, the) alphabetize by the next word. If you cite two or more works by the same author, list the titles in alphabetical order. Begin every entry after the first with three hyphens followed by a period. All entries begin at the left margin but subsequent lines are indented five spaces. Be sure that each entry cited on the Works Cited page corresponds to a specific citation within your paper. Refer to the the MLA Handbook for Writers of Research Papers (104- 182) for detailed descriptions of Work Cited entries. Citing sources from online databases is a relatively new phenomenon. Make sure to ask your professor about citing these sources and which style to use. V. Draft, Revise, Rewrite, Rethink Back to Top "There are days when the result is so bad that no fewer than five revisions are required. In contrast, when I'm greatly inspired, only four revisions are needed." --John Kenneth Galbraith Try freewriting your first draft. Freewriting is a discovery process during which the writer freely explores a topic. Let your creative juices flow. In Writing without Teachers , Peter Elbow asserts that "[a]lmost everybody interposes a massive and complicated series of editings between the time words start to be born into consciousness and when they finally come off the end of the pencil or typewriter [or word processor] onto the page" (5). Do not let your internal judge interfere with this first draft. Creating and revising are two very different functions. Don't confuse them! If you stop to check spelling, punctuation, or grammar, you disrupt the flow of creative energy. Create; then fix it later. When material you have researched comes easily to mind, include it. Add a quick citation, one you can come back to later to check for form, and get on with your discovery. In subsequent drafts, focus on creating an essay that flows smoothly, supports fully, and speaks clearly and interestingly. Add style to substance. Create a smooth flow of words, ideas and paragraphs. Rearrange paragraphs for a logical progression of information. Transition is essential if you want your reader to follow you smoothly from introduction to conclusion. Transitional words and phrases stitch your ideas together; they provide coherence within the essay. External transition: Words and phrases that are added to a sentence as overt signs of transition are obvious and effective, but should not be overused, as they may draw attention to themselves and away from ideas. Examples of external transition are "however," "then," "next," "therefore." "first," "moreover," and "on the other hand." Internal transition is more subtle. Key words in the introduction become golden threads when they appear in the paper's body and conclusion. When the writer hears a key word repeated too often, however, she/he replaces it with a synonym or a pronoun. Below are examples of internal transition. Transitional sentences create a logical flow from paragraph to paragraph. Iclude individual words, phrases, or clauses that refer to previous ideas and that point ahead to new ones. They are usually placed at the end or at the beginning of a paragraph. A transitional paragraph conducts your reader from one part of the paper to another. It may be only a few sentences long. Each paragraph of the body of the paper should contain adequate support for its one governing idea. Speak/write clearly, in your own voice. Tone: The paper's tone, whether formal, ironic, or humorous, should be appropriate for the audience and the subject. Voice: Keep you language honest. Your paper should sound like you. Understand, paraphrase, absorb, and express in your own words the information you have researched. Avoid phony language. Sentence formation: When you polish your sentences, read them aloud for word choice and word placement. Be concise. Strunk and White in The Elements of Style advise the writer to "omit needless words" (23). First, however, you must recognize them. Keep yourself and your reader interested. In fact, Strunk's 1918 writing advice is still well worth pondering. First, deliver on your promises. Be sure the body of your paper fulfills the promise of the introduction. Avoid the obvious. Offer new insights. Reveal the unexpected. Have you crafted your conclusion as carefully as you have your introduction? Conclusions are not merely the repetition of your thesis. The conclusion of a research paper is a synthesis of the information presented in the body. Your research has led you to conclusions and opinions that have helped you understand your thesis more deeply and more clearly. Lift your reader to the full level of understanding that you have achieved. Revision means "to look again." Find a peer reader to read your paper with you present. Or, visit your college or university's writing lab. Guide your reader's responses by asking specific questions. Are you unsure of the logical order of your paragraphs? Do you want to know whether you have supported all opinions adequately? Are you concerned about punctuation or grammar? Ask that these issues be addressed. You are in charge. Here are some techniques that may prove helpful when you are revising alone or with a reader. When you edit for spelling errors read the sentences backwards. This procedure will help you look closely at individual words. Always read your paper aloud. Hearing your own words puts them in a new light. Listen to the flow of ideas and of language. Decide whether or not the voice sounds honest and the tone is appropriate to the purpose of the paper and to your audience. Listen for awkward or lumpy wording. Find the one right word, Eliminate needless words. Combine sentences. Kill the passive voice. Eliminate was/were/is/are constructions. They're lame and anti-historical. Be ruthless. If an idea doesn't serve your thesis, banish it, even if it's one of your favorite bits of prose. In the margins, write the major topic of each paragraph. By outlining after you have written the paper, you are once again evaluating your paper's organization. OK, you've got the process down. Now execute! And enjoy! It's not everyday that you get to make history. VI. For Further Reading: Works Cited Back to Top Barnet, Sylvan, and Hugo Bedau. Critical Thinking, Reading, and Writing: A Brief Guide to Argument. Boston: Bedford, 1993. Brent, Doug. Reading as Rhetorical Invention: Knowledge,Persuasion and the Teaching of Research-Based Writing. Urbana: NCTE, 1992. Elbow, Peter. Writing without Teachers. New York: Oxford University Press, 1973. Gibladi, Joseph. MLA Handbook for Writers of Research Papers. 4th ed. New York: Modern Language Association, 1995. Horvitz, Deborah. "Nameless Ghosts: Possession and Dispossession in Beloved." Studies in American Fiction , Vol. 17, No. 2, Autum, 1989, pp. 157-167. Republished in the Literature Research Center. Gale Group. (1 January 1999). Klauser, Henriette Anne. Writing on Both Sides of the Brain: Breakthrough Techniques for People Who Write. Philadelphia: Harper, 1986. Rico, Gabriele Lusser. Writing the Natural Way: Using Right Brain Techniques to Release Your Expressive Powers. Los Angeles: Houghton, 1983. Sorenson, Sharon. The Research Paper: A Contemporary Approach. New York: AMSCO, 1994. Strunk, William, Jr., and E. B. White. The Elements of Style. 3rd ed. New York: MacMillan, 1979. Back to Top This guide adapted from materials published by Thomson Gale, publishers. For free resources, including a generic guide to writing term papers, see the Gale.com website , which also includes product information for schools.

Writing a Good History Paper

• Top Ten Reasons for Negative Comments
• Making Sure your Paper has Substance

Common Marginal Remarks on Style, Clarity, Grammar, and Syntax

Word and phrase usage problems, analyzing a historical document, writing a book review, writing a term paper or senior thesis, top ten reasons for negative comments on history papers.

(Drawn from a survey of the History Department ) 10. You engage in cheap, anachronistic moralizing .  9. You are sloppy with the chronology .  8. You quote excessively or improperly .  7. You have written a careless “one-draft wonder.” (See revise and proofread)  6. You are vague or have empty, unsupported generalizations .  5. You write too much in the passive voice.  4. You use inappropriate sources .  3. You use evidence uncritically.  2. You are wordy .  1. You have no clear thesis and little analysis.

Making Sure your History Paper has Substance

Get off to a good start..

Avoid pretentious, vapid beginnings. If you are writing a paper on, say, British responses to the rebellion in India in 1857, don't open with a statement like this: “Throughout human history people in all cultures everywhere in the world have engaged in many and long-running conflicts about numerous aspects of government policy and diplomatic issues, which have much interested historians and generated historical theories in many areas.” This is pure garbage, bores the reader, and is a sure sign that you have nothing substantive to say. Get to the point. Here’s a better start: “The rebellion in 1857 compelled the British to rethink their colonial administration in India.” This sentence tells the reader what your paper is actually about and clears the way for you to state your thesis in the rest of the opening paragraph. For example, you might go on to argue that greater British sensitivity to Indian customs was hypocritical.

State a clear thesis.

Whether you are writing an exam essay or a senior thesis, you need to have a thesis. Don’t just repeat the assignment or start writing down everything that you know about the subject. Ask yourself, “What exactly am I trying to prove?” Your thesis is your take on the subject, your perspective, your explanation—that is, the case that you’re going to argue. “Famine struck Ireland in the 1840s” is a true statement, but it is not a thesis. “The English were responsible for famine in Ireland in the 1840s” is a thesis (whether defensible or not is another matter). A good thesis answers an important research question about how or why something happened. (“Who was responsible for the famine in Ireland in the 1840s?”) Once you have laid out your thesis, don’t forget about it. Develop your thesis logically from paragraph to paragraph. Your reader should always know where your argument has come from, where it is now, and where it is going.

Be sure to analyze.

Students are often puzzled when their professors mark them down for summarizing or merely narrating rather than analyzing. What does it mean to analyze? In the narrow sense, to analyze means to break down into parts and to study the interrelationships of those parts. If you analyze water, you break it down into hydrogen and oxygen. In a broader sense, historical analysis explains the origins and significance of events. Historical analysis digs beneath the surface to see relationships or distinctions that are not immediately obvious. Historical analysis is critical; it evaluates sources, assigns significance to causes, and weighs competing explanations. Don’t push the distinction too far, but you might think of summary and analysis this way: Who, what, when, and where are the stuff of summary; how, why, and to what effect are the stuff of analysis. Many students think that they have to give a long summary (to show the professor that they know the facts) before they get to their analysis. Try instead to begin your analysis as soon as possible, sometimes without any summary at all. The facts will “shine through” a good analysis. You can't do an analysis unless you know the facts, but you can summarize the facts without being able to do an analysis. Summary is easier and less sophisticated than analysis—that’s why summary alone never earns an “A.”

Use evidence critically.

Like good detectives, historians are critical of their sources and cross-check them for reliability. You wouldn't think much of a detective who relied solely on a suspect’s archenemy to check an alibi. Likewise, you wouldn't think much of a historian who relied solely on the French to explain the origins of World War I. Consider the following two statements on the origin of World War I: 1) “For the catastrophe of 1914 the Germans are responsible. Only a professional liar would deny this...” 2) “It is not true that Germany is guilty of having caused this war. Neither the people, the government, nor the Kaiser wanted war....”  They can’t both be right, so you have to do some detective work. As always, the best approach is to ask: Who wrote the source? Why? When? Under what circumstances? For whom? The first statement comes from a book by the French politician Georges Clemenceau, which he wrote in 1929 at the very end of his life. In 1871, Clemenceau had vowed revenge against Germany for its defeat of France in the Franco-Prussian War. As premier of France from 1917 to 1920, he represented France at the Paris Peace Conference in 1919. He was obviously not a disinterested observer. The second statement comes from a manifesto published by ninety-three prominent German intellectuals in the fall of 1914. They were defending Germany against charges of aggression and brutality. They too were obviously not disinterested observers. Now, rarely do you encounter such extreme bias and passionate disagreement, but the principle of criticizing and cross-checking sources always applies. In general, the more sources you can use, and the more varied they are, the more likely you are to make a sound historical judgment, especially when passions and self-interests are engaged. You don’t need to be cynical as a historian (self-interest does not explain everything), but you do need to be critical and skeptical. Competent historians may offer different interpretations of the same evidence or choose to stress different evidence. You will not find a single historical Truth with a capital “T” on any matter of significance. You can, however, learn to discriminate among conflicting interpretations, not all of which are created equal. (See also: Analyzing a Historical Document )

Be precise.

Vague statements and empty generalizations suggest that you haven't put in the time to learn the material. Consider these two sentences: “During the French Revolution, the government was overthrown by the people. The Revolution is important because it shows that people need freedom.” What people? Landless peasants? Urban journeymen? Wealthy lawyers? Which government? When? How? Who exactly needed freedom, and what did they mean by freedom? Here is a more precise statement about the French Revolution: “Threatened by rising prices and food shortages in 1793, the Parisian sans-culottes pressured the Convention to institute price controls.” This statement is more limited than the grandiose generalizations about the Revolution, but unlike them, it can open the door to a real analysis of the Revolution. Be careful when you use grand abstractions like people, society, freedom, and government, especially when you further distance yourself from the concrete by using these words as the apparent antecedents for the pronouns they and it. Always pay attention to cause and effect. Abstractions do not cause or need anything; particular people or particular groups of people cause or need things. Avoid grandiose trans-historical generalizations that you can’t support. When in doubt about the appropriate level of precision or detail, err on the side of adding “too much” precision and detail.

Watch the chronology.

Anchor your thesis in a clear chronological framework and don't jump around confusingly. Take care to avoid both anachronisms and vagueness about dates. If you write, “Napoleon abandoned his Grand Army in Russia and caught the redeye back to Paris,” the problem is obvious. If you write, “Despite the Watergate scandal, Nixon easily won reelection in 1972,” the problem is more subtle, but still serious. (The scandal did not become public until after the election.) If you write, “The revolution in China finally succeeded in the twentieth century,” your professor may suspect that you haven’t studied. Which revolution? When in the twentieth century? Remember that chronology is the backbone of history. What would you think of a biographer who wrote that you graduated from Hamilton in the 1950s?

Cite sources carefully.

Your professor may allow parenthetical citations in a short paper with one or two sources, but you should use footnotes for any research paper in history. Parenthetical citations are unaesthetic; they scar the text and break the flow of reading. Worse still, they are simply inadequate to capture the richness of historical sources. Historians take justifiable pride in the immense variety of their sources. Parenthetical citations such as (Jones 1994) may be fine for most of the social sciences and humanities, where the source base is usually limited to recent books and articles in English. Historians, however, need the flexibility of the full footnote. Try to imagine this typical footnote (pulled at random from a classic work of German history) squeezed into parentheses in the body of the text: DZA Potsdam, RdI, Frieden 5, Erzgebiet von Longwy-Briey, Bd. I, Nr. 19305, gedruckte Denkschrift für OHL und Reichsleitung, Dezember 1917, und in RWA, Frieden Frankreich Nr. 1883. The abbreviations are already in this footnote; its information cannot be further reduced. For footnotes and bibliography, historians usually use Chicago style. (The Chicago Manual of Style. 15th edition. Chicago: University of Chicago Press, 2003.) On the Writing Center’s website you can find a useful summary of Chicago citation style prepared by a former history major, Elizabeth Rabe ’04 ( Footnotes ). RefWorks (on the library’s website) will convert your citations to Chicago style. Don’t hesitate to ask one of the reference librarians for help if you have trouble getting started on RefWorks.

Use primary sources.

Use as many primary sources as possible in your paper. A primary source is one produced by a participant in or witness of the events you are writing about. A primary source allows the historian to see the past through the eyes of direct participants. Some common primary sources are letters, diaries, memoirs, speeches, church records, newspaper articles, and government documents of all kinds. The capacious genre “government records” is probably the single richest trove for the historian and includes everything from criminal court records, to tax lists, to census data, to parliamentary debates, to international treaties—indeed, any records generated by governments. If you’re writing about culture, primary sources may include works of art or literature, as well as philosophical tracts or scientific treatises—anything that comes under the broad rubric of culture. Not all primary sources are written. Buildings, monuments, clothes, home furnishings, photographs, religious relics, musical recordings, or oral reminiscences can all be primary sources if you use them as historical clues. The interests of historians are so broad that virtually anything can be a primary source. (See also: Analyzing a Historical Document )

Use scholarly secondary sources.

A secondary source is one written by a later historian who had no part in what he or she is writing about. (In the rare cases when the historian was a participant in the events, then the work—or at least part of it—is a primary source.) Historians read secondary sources to learn about how scholars have interpreted the past. Just as you must be critical of primary sources, so too you must be critical of secondary sources. You must be especially careful to distinguish between scholarly and non-scholarly secondary sources. Unlike, say, nuclear physics, history attracts many amateurs. Books and articles about war, great individuals, and everyday material life dominate popular history. Some professional historians disparage popular history and may even discourage their colleagues from trying their hand at it. You need not share their snobbishness; some popular history is excellent. But—and this is a big but—as a rule, you should avoid popular works in your research, because they are usually not scholarly. Popular history seeks to inform and entertain a large general audience. In popular history, dramatic storytelling often prevails over analysis, style over substance, simplicity over complexity, and grand generalization over careful qualification. Popular history is usually based largely or exclusively on secondary sources. Strictly speaking, most popular histories might better be called tertiary, not secondary, sources. Scholarly history, in contrast, seeks to discover new knowledge or to reinterpret existing knowledge. Good scholars wish to write clearly and simply, and they may spin a compelling yarn, but they do not shun depth, analysis, complexity, or qualification. Scholarly history draws on as many primary sources as practical. Now, your goal as a student is to come as close as possible to the scholarly ideal, so you need to develop a nose for distinguishing the scholarly from the non-scholarly. Here are a few questions you might ask of your secondary sources (bear in mind that the popular/scholarly distinction is not absolute, and that some scholarly work may be poor scholarship). Who is the author? Most scholarly works are written by professional historians (usually professors) who have advanced training in the area they are writing about. If the author is a journalist or someone with no special historical training, be careful. Who publishes the work? Scholarly books come from university presses and from a handful of commercial presses (for example, Norton, Routledge, Palgrave, Penguin, Rowman & Littlefield, Knopf, and HarperCollins). If it’s an article, where does it appear? Is it in a journal subscribed to by our library, listed on JSTOR , or published by a university press? Is the editorial board staffed by professors? Oddly enough, the word journal in the title is usually a sign that the periodical is scholarly. What do the notes and bibliography look like? If they are thin or nonexistent, be careful. If they are all secondary sources, be careful. If the work is about a non-English-speaking area, and all the sources are in English, then it's almost by definition not scholarly. Can you find reviews of the book in the data base Academic Search Premier? If the book was published within the last few decades, and it’s not in there, that’s a bad sign. With a little practice, you can develop confidence in your judgment—and you’re on your way to being a historian. If you are unsure whether a work qualifies as scholarly, ask your professor. (See also: Writing a Book Review )

Avoid abusing your sources.

Many potentially valuable sources are easy to abuse. Be especially alert for these five abuses: Web abuse. The Web is a wonderful and improving resource for indexes and catalogs. But as a source for primary and secondary material for the historian, the Web is of limited value. Anyone with the right software can post something on the Web without having to get past trained editors, peer reviewers, or librarians. As a result, there is a great deal of garbage on the Web. If you use a primary source from the Web, make sure that a respected intellectual institution stands behind the site. Be especially wary of secondary articles on the Web, unless they appear in electronic versions of established print journals (e.g., The Journal of Asian Studies in JSTOR). Many articles on the Web are little more than third-rate encyclopedia entries. When in doubt, check with your professor. With a few rare exceptions, you will not find scholarly monographs in history (even recent ones) on the Web. You may have heard of Google’s plans to digitize the entire collections of some of the world’s major libraries and to make those collections available on the Web. Don’t hold your breath. Your days at Hamilton will be long over by the time the project is finished. Besides, your training as a historian should give you a healthy skepticism of the giddy claims of technophiles. Most of the time and effort of doing history goes into reading, note-taking, pondering, and writing. Finding a chapter of a book on the Web (as opposed to getting the physical book through interlibrary loan) might be a convenience, but it doesn’t change the basics for the historian. Moreover, there is a subtle, but serious, drawback with digitized old books: They break the historian’s sensual link to the past. And of course, virtually none of the literally trillions of pages of archival material is available on the Web. For the foreseeable future, the library and the archive will remain the natural habitats of the historian. Thesaurus abuse. How tempting it is to ask your computer’s thesaurus to suggest a more erudite-sounding word for the common one that popped into your mind! Resist the temptation. Consider this example (admittedly, a bit heavy-handed, but it drives the point home): You’re writing about the EPA’s programs to clean up impure water supplies. Impure seems too simple and boring a word, so you bring up your thesaurus, which offers you everything from incontinent to meretricious. “How about meretricious water?” you think to yourself. “That will impress the professor.” The problem is that you don’t know exactly what meretricious means, so you don’t realize that meretricious is absurdly inappropriate in this context and makes you look foolish and immature. Use only those words that come to you naturally. Don’t try to write beyond your vocabulary. Don’t try to impress with big words. Use a thesaurus only for those annoying tip-of-the-tongue problems (you know the word and will recognize it instantly when you see it, but at the moment you just can’t think of it).  Quotation book abuse. This is similar to thesaurus abuse. Let’s say you are writing a paper on Alexander Hamilton’s banking policies, and you want to get off to a snappy start that will make you seem effortlessly learned. How about a quotation on money? You click on the index of Bartlett’s Familiar Quotations , and before you know it, you’ve begun your paper with, “As Samuel Butler wrote in Hudibras ,  ‘For what is worth in anything/ But so much money as ’t will bring?’” Face it, you’re faking it. You don’t know who Samuel Butler is, and you’ve certainly never heard of Hudibras , let alone read it. Your professor is not fooled. You sound like an insecure after-dinner speaker. Forget Bartlett’s, unless you're confirming the wording of a quotation that came to you spontaneously and relates to your paper.  Encyclopedia abuse. General encyclopedias like Britannica are useful for checking facts (“Wait a sec, am I right about which countries sent troops to crush the Boxer Rebellion in China? Better check.”). But if you are footnoting encyclopedias in your papers, you are not doing college-level research.

Dictionary Abuse. The dictionary is your friend. Keep it by your side as you write, but do not abuse it by starting papers with a definition. You may be most tempted to start this way when you are writing on a complex, controversial, or elusive subject. (“According to Webster’s Collegiate Dictionary , liberalism is defined as...”). Actually, the dictionary does you little good in such cases and makes you sound like a conscientious but dull high-school student. Save in the rare case that competing dictionary definitions are the subject at hand, keep dictionary quotations out of your paper.

Quote sparingly

Avoid quoting a secondary source and then simply rewording or summarizing the quotation, either above or below the quotation. It is rarely necessary to quote secondary sources at length, unless your essay focuses on a critical analysis of the author’s argument. (See also: Writing a Book Review ) Your professor wants to see your ability to analyze and to understand the secondary sources. Do not quote unless the quotation clarifies or enriches your analysis. When in doubt, do not quote; instead, integrate the author’s argument into your own (though be sure to acknowledge ideas from your sources, even when you are paraphrasing). If you use a lot of quotations from secondary sources, you are probably writing a poor paper. An analysis of a primary source, such as a political tract or philosophical essay, might require lengthy quotations, often in block format. In such cases, you might need to briefly repeat key points or passages as a means to introduce the author’s ideas, but your analysis and interpretation of the text’s meaning should remain the most important aim. (See also: Using primary sources and Use scholarly secondary sources .)

Know your audience

Unless instructed otherwise, you should assume that your audience consists of educated, intelligent, nonspecialists. In fact, your professor will usually be your only reader, but if you write directly to your professor, you may become cryptic or sloppy (oh well, she’ll know what I’m talking about). Explaining your ideas to someone who doesn't know what you mean forces you to be clear and complete. Now, finding the right amount of detail can, admittedly, be tricky (how much do I put in about the Edict of Nantes, the Embargo Act, or President Wilson’s background?). When in doubt, err on the side of putting in extra details. You’ll get some leeway here if you avoid the extremes (my reader’s an ignoramus/my reader knows everything).

Avoid cheap, anachronistic moralizing

Many of the people and institutions of the past appear unenlightened, ignorant, misguided, or bigoted by today’s values. Resist the temptation to condemn or to get self-righteous. (“Martin Luther was blind to the sexism and class prejudice of sixteenth-century German society.”) Like you, people in the past were creatures of their time; like you, they deserve to be judged by the standards of their time. If you judge the past by today’s standards (an error historians call “presentism”), you will never understand why people thought or acted as they did. Yes, Hitler was a bad guy, but he was bad not only by today’s standards, but also by the commonly accepted standards of his own time. Someday you’re going to look pretty foolish and ignorant yourself. (“Early twenty-first century Hamilton students failed to see the shocking inderdosherism [that’s right, you don’t recognize the concept because it doesn’t yet exist] implicit in their career plans.”)

Have a strong conclusion

Obviously, you should not just stop abruptly as though you have run out of time or ideas. Your conclusion should conclude something. If you merely restate briefly what you have said in your paper, you give the impression that you are unsure of the significance of what you have written. A weak conclusion leaves the reader unsatisfied and bewildered, wondering why your paper was worth reading. A strong conclusion adds something to what you said in your introduction. A strong conclusion explains the importance and significance of what you have written. A strong conclusion leaves your reader caring about what you have said and pondering the larger implications of your thesis. Don’t leave your reader asking, “So what?”

Revise and proofread

Your professor can spot a “one-draft wonder,” so don't try to do your paper at the last moment. Leave plenty of time for revising and proofreading. Show your draft to a writing tutor or other good writer. Reading the draft aloud may also help. Of course, everyone makes mistakes, and a few may slip through no matter how meticulous you are. But beware of lots of mistakes. The failure to proofread carefully suggests that you devoted little time and effort to the assignment. Tip: Proofread your text both on the screen and on a printed copy. Your eyes see the two differently. Don’t rely on your spell checker to catch all of your misspellings. (If ewe ken reed this ewe kin sea that a computer wood nut all ways help ewe spill or rite reel good.)

Note: The Writing Center suggests standard abbreviations for noting some of these problems. You should familiarize yourself with those abbreviations, but your professor may not use them.  

Remarks on Style and Clarity

Wordy/verbose/repetitive..

Try your hand at fixing this sentence: “Due to the fact that these aspects of the issue of personal survival have been raised by recently transpired problematic conflicts, it is at the present time paramount that the ultimate psychological end of suicide be contemplated by this individual.” If you get it down to “To be or not to be, that is the question,” you’ve done well. You may not match Shakespeare, but you can learn to cut the fat out of your prose. The chances are that the five pages you’ve written for your history paper do not really contain five pages’ worth of ideas.

Misuse of the passive voice.

Write in the active voice. The passive voice encourages vagueness and dullness; it enfeebles verbs; and it conceals agency, which is the very stuff of history. You know all of this almost instinctively. What would you think of a lover who sighed in your ear, “My darling, you are loved by me!”? At its worst, the passive voice—like its kin, bureaucratic language and jargon—is a medium for the dishonesty and evasion of responsibility that pervade contemporary American culture. (“Mistakes were made; I was given false information.” Now notice the difference: “I screwed up; Smith and Jones lied to me; I neglected to check the facts.”) On history papers the passive voice usually signals a less toxic version of the same unwillingness to take charge, to commit yourself, and to say forthrightly what is really going on, and who is doing what to whom. Suppose you write, “In 1935 Ethiopia was invaded.” This sentence is a disaster. Who invaded? Your professor will assume that you don't know. Adding “by Italy” to the end of the sentence helps a bit, but the sentence is still flat and misleading. Italy was an aggressive actor, and your passive construction conceals that salient fact by putting the actor in the syntactically weakest position—at the end of the sentence as the object of a preposition. Notice how you add vigor and clarity to the sentence when you recast it in the active voice: "In 1935 Italy invaded Ethiopia." I n a few cases , you may violate the no-passive-voice rule. The passive voice may be preferable if the agent is either obvious (“Kennedy was elected in 1960”), irrelevant (“Theodore Roosevelt became president when McKinley was assassinated”), or unknown (“King Harold was killed at the Battle of Hastings”). Note that in all three of these sample sentences the passive voice focuses the reader on the receiver of the action rather than on the doer (on Kennedy, not on American voters; on McKinley, not on his assassin; on King Harold, not on the unknown Norman archer). Historians usually wish to focus on the doer, so you should stay with the active voice—unless you can make a compelling case for an exception.

Abuse of the verb to be.

The verb to be is the most common and most important verb in English, but too many verbs to be suck the life out of your prose and lead to wordiness. Enliven your prose with as many action verbs as possible. ( “In Brown v. Board of Education it was the opinion of the Supreme Court that the doctrine of ‘separate but equal’ was in violation of the Fourteenth Amendment.”) Rewrite as “ In Brown v. Board of Education the Supreme Court ruled that the doctrine of ‘separate but equal’ violated the Fourteenth ”

Explain/what’s your point?/unclear/huh?

You may (or may not) know what you’re talking about, but if you see these marginal comments, you have confused your reader. You may have introduced a non sequitur ; gotten off the subject; drifted into abstraction; assumed something that you have not told the reader; failed to explain how the material relates to your argument; garbled your syntax; or simply failed to proofread carefully.  If possible, have a good writer read your paper and point out the muddled parts. Reading your paper aloud may help too.

Paragraph goes nowhere/has no point or unity.

Paragraphs are the building blocks of your paper. If your paragraphs are weak, your paper cannot be strong. Try underlining the topic sentence of every paragraph. If your topic sentences are vague, strength and precision—the hallmarks of good writing—are unlikely to follow. Consider this topic sentence (from a paper on Ivan the Terrible): “From 1538 to 1547, there are many different arguments about the nature of what happened.”  Disaster looms. The reader has no way of knowing when the arguing takes place, who’s arguing, or even what the arguing is about. And how does the “nature of what happened” differ from plain “what happened”? Perhaps the writer means the following: “The childhood of Ivan the Terrible has provoked controversy among scholars of Russian history.” That's hardly deathless prose, but it does orient the reader and make the writer accountable for what follows in the paragraph. Once you have a good topic sentence, make sure that everything in the paragraph supports that sentence, and that cumulatively the support is persuasive. Make sure that each sentence follows logically from the previous one, adding detail in a coherent order. Move, delete, or add material as appropriate. To avoid confusing the reader, limit each paragraph to one central idea. (If you have a series of supporting points starting with first, you must follow with a second, third , etc.) A paragraph that runs more than a printed page is probably too long. Err on the side of shorter paragraphs.

Inappropriate use of first person.

Most historians write in the third person, which focuses the reader on the subject. If you write in the first person singular, you shift the focus to yourself. You give the impression that you want to break in and say, “Enough about the Haitian revolution [or whatever], now let’s talk about me!” Also avoid the first person plural (“We believe...”). It suggests committees, editorial boards, or royalty. None of those should have had a hand in writing your paper. And don’t refer to yourself lamely as “this writer.” Who else could possibly be writing the paper?

Tense inconsistency.

Stay consistently in the past tense when you are writing about what took place in the past. (“Truman’s defeat of Dewey in 1948 caught the pollsters by surprise.”) Note that the context may require a shift into the past perfect. (“The pollsters had not realized [past perfect] that voter opinion had been [past perfect] changing rapidly in the days before the election.”) Unfortunately, the tense problem can get a bit more complicated. Most historians shift into the present tense when describing or commenting on a book, document, or evidence that still exists and is in front of them (or in their mind) as they write.  (“de Beauvoir published [past tense] The Second Sex in 1949. In the book she contends [present tense] that woman....”) If you’re confused, think of it this way: History is about the past, so historians write in the past tense, unless they are discussing effects of the past that still exist and thus are in the present. When in doubt, use the past tense and stay consistent.

Ill-fitted quotation.

This is a common problem, though not noted in stylebooks. When you quote someone, make sure that the quotation fits grammatically into your sentence.  Note carefully the mismatch between the start of the following sentence and the quotation that follows:  “In order to understand the Vikings, writes Marc Bloch, it is necessary, ‘To conceive of the Viking expeditions as religious warfare inspired by the ardour of an implacable pagan fanaticism—an explanation that has sometimes been at least suggested—conflicts too much with what we know of minds disposed to respect magic of every kind.’” At first, the transition into the quotation from Bloch seems fine. The infinitive (to conceive) fits. But then the reader comes to the verb (conflicts) in Bloch’s sentence, and things no longer make sense. The writer is saying, in effect, “it is necessary conflicts.” The wordy lead-in and the complex syntax of the quotation have tripped the writer and confused the reader. If you wish to use the whole sentence, rewrite as “Marc Bloch writes in Feudal Society , ‘To conceive of...’” Better yet, use your own words or only part of the quotation in your sentence. Remember that good writers quote infrequently, but when they do need to quote, they use carefully phrased lead-ins that fit the grammatical construction of the quotation.

Free-floating quotation.

Do not suddenly drop quotations into your prose. (“The spirit of the Progressive era is best understood if one remembers that the United States is ‘the only country in the world that began with perfection and aspired to progress.’”) You have probably chosen the quotation because it is finely wrought and says exactly what you want to say. Fine, but first you inconvenience the reader, who must go to the footnote to learn that the quotation comes from The Age of Reform by historian Richard Hofstadter. And then you puzzle the reader. Did Hofstadter write the line about perfection and progress, or is he quoting someone from the Progressive era? If, as you claim, you are going to help the reader to judge the “spirit of the Progressive era,” you need to clarify. Rewrite as “As historian Richard Hofstadter writes in the Age of Reform , the United States is ‘the only country in the world...’” Now the reader knows immediately that the line is Hofstadter’s.

Who’s speaking here?/your view?

Always be clear about whether you’re giving your opinion or that of the author or historical actor you are discussing. Let’s say that your essay is about Martin Luther’s social views. You write, “The German peasants who revolted in 1525 were brutes and deserved to be crushed mercilessly.” That’s what Luther thought, but do you agree?  You may know, but your reader is not a mind reader. When in doubt, err on the side of being overly clear.

Jargon/pretentious theory.

Historians value plain English. Academic jargon and pretentious theory will make your prose turgid, ridiculous, and downright irritating. Your professor will suspect that you are trying to conceal that you have little to say. Of course, historians can’t get along without some theory; even those who profess to have no theory actually do—it’s called naïve realism. And sometimes you need a technical term, be it ontological argument or ecological fallacy. When you use theory or technical terms, make sure that they are intelligible and do real intellectual lifting.  Please, no sentences like this: “By means of a neo-Althusserian, post-feminist hermeneutics, this essay will de/construct the logo/phallo/centrism imbricated in the marginalizing post-colonial gendered gaze, thereby proliferating the subjectivities that will re/present the de/stabilization of the essentializing habitus of post-Fordist capitalism.”

Informal language/slang.

You don’t need to be stuffy, but stay with formal English prose of the kind that will still be comprehensible to future generations. Columbus did not “push the envelope in the Atlantic.” Henry VIII was not “looking for his inner child when he broke with the Church.” Prime Minister Cavour of Piedmont was not “trying to play in the major leagues diplomatic wise.” Wilson did not “almost veg out” at the end of his second term. President Hindenburg did not appoint Hitler in a “senior moment.” Prime Minister Chamberlain did not tell the Czechs to “chill out” after the Munich Conference, and Gandhi was not an “awesome dude.”

Try to keep your prose fresh. Avoid cliches. When you proofread, watch out for sentences like these: “Voltaire always gave 110 percent and thought outside the box. His bottom line was that as people went forward into the future, they would, at the end of the day, step up to the plate and realize that the Jesuits were conniving perverts.” Ugh. Rewrite as “Voltaire tried to persuade people that the Jesuits were cony, step up to the plate and realize that the Jesuits were conniving perverts.” Ugh. Rewrite as “Voltaire tried to persuade people that the Jesuits were conniving perverts.”

Intensifier abuse/exaggeration.

Avoid inflating your prose with unsustainable claims of size, importance, uniqueness, certainty, or intensity. Such claims mark you as an inexperienced writer trying to impress the reader. Your statement is probably not certain ; your subject probably not unique , the biggest, the best, or the most important. Also, the adverb very will rarely strengthen your sentence. Strike it. (“President Truman was very determined to stop the spread of communism in Greece.”) Rewrite as “President Truman resolved to stop the spread of communism in Greece.”

Mixed image.

Once you have chosen an image, you must stay with language compatible with that image. In the following example, note that the chain, the boiling, and the igniting are all incompatible with the image of the cold, rolling, enlarging snowball: “A snowballing chain of events boiled over, igniting the powder keg of war in 1914.” Well chosen images can enliven your prose, but if you catch yourself mixing images a lot, you're probably trying to write beyond your ability. Pull back. Be more literal.

Clumsy transition.

If your reader feels a jolt or gets disoriented at the beginning of a new paragraph, your paper probably lacks unity. In a good paper, each paragraph is woven seamlessly into the next. If you find yourself beginning your paragraphs with phrases such as “Another aspect of this problem...,” then you are probably “stacking note cards” rather than developing a thesis.

Unnecessary relative clause.

If you don’t need to restrict the meaning of your sentence’s subject, then don’t. (“Napoleon was a man who tried to conquer Europe.”) Here the relative clause adds nothing. Rewrite as “Napoleon tried to conquer Europe.” Unnecessary relative clauses are a classic form of wordiness.

Distancing or demeaning quotation marks.

If you believe that a frequently used word or phrase distorts historical reality, don’t put it in dismissive, sneering quotation marks to make your point (“the communist ‘threat’ to the ‘free’ world during the Cold War”). Many readers find this practice arrogant, obnoxious, and precious, and they may dismiss your arguments out of hand. If you believe that the communist threat was bogus or exaggerated, or that the free world was not really free, then simply explain what you mean.

Remarks on Grammar and Syntax

Ideally, your professor will help you to improve your writing by specifying exactly what is wrong with a particular passage, but  sometimes you may find a simple awk in the margin. This all-purpose negative comment usually suggests that the sentence is clumsy because you have misused words or compounded several errors. Consider this sentence from a book review:

“However, many falsehoods lie in Goldhagen’s claims and these will be explored.”

What is your long-suffering professor to do with this sentence? The however contributes nothing; the phrase falsehoods lie is an unintended pun that distracts the reader; the comma is missing between the independent clauses; the these has no clear antecedent ( falsehoods? claims? ); the second clause is in the passive voice and contributes nothing anyway; the whole sentence is wordy and screams hasty, last-minute composition. In weary frustration, your professor scrawls awk in the margin and moves on. Buried under the twelve-word sentence lies a three-word idea: “Goldhagen often errs.” When you see awk, check for the common errors in this list. If you don’t understand what’s wrong, ask.

Unclear antecedent.

All pronouns must refer clearly to antecedents and must agree with them in number. The reader usually assumes that the antecedent is the immediately preceding noun. Do not confuse the reader by having several possible antecedents. Consider these two sentences:

“Pope Gregory VII forced Emperor Henry IV to wait three days in the snow at Canossa before granting him an audience. It was a symbolic act.”

To what does the it refer? Forcing the Emperor to wait? The waiting itself? The granting of the audience? The audience itself? The whole previous sentence? You are most likely to get into antecedent trouble when you begin a paragraph with this or it , referring vaguely back to the general import of the previous paragraph. When in doubt, take this test: Circle the pronoun and the antecedent and connect the two with a line. Then ask yourself if your reader could instantly make the same diagram without your help. If the line is long, or if the circle around the antecedent is large, encompassing huge gobs of text, then your reader probably will be confused.  Rewrite. Repetition is better than ambiguity and confusion.

Faulty parallelism.

You confuse your reader if you change the grammatical construction from one element to the next in a series. Consider this sentence:

“King Frederick the Great sought to expand Prussia, to rationalize agriculture, and that the state support education.”

The reader expects another infinitive, but instead trips over the that . Rewrite the last clause as “and to promote state-supported education.” Sentences using neither/nor frequently present parallelism problems. Note the two parts of this sentence:

“After 1870 the cavalry charge was neither an effective tactic, nor did armies use it frequently.”

The sentence jars because the neither is followed by a noun, the nor by a verb. Keep the parts parallel.

Rewrite as “After 1870 the cavalry charge was neither effective nor frequently used.”

Sentences with not only/but also are another pitfall for many students. (“Mussolini attacked not only liberalism, but he also advocated militarism.”) Here the reader is set up to expect a noun in the second clause, but stumbles over a verb. Make the parts parallel by putting the verb attacked after the not only .

Misplaced modifier/dangling element.

Do not confuse the reader with a phrase or clause that refers illogically or absurdly to other words in the sentence. (“Summarized on the back cover of the American paperback edition, the publishers claim that...”) The publishers are not summarized on the back cover. (“Upon finishing the book, many questions remain.”) Who finished the book? Questions can’t read. Avoid following an introductory participial clause with the expletives it or there . Expletives are by definition filler words; they can’t be agents. (“Having examined the origins of the Meiji Restoration in Japan, it is apparent that...”) Apparent to whom?  The expletive it didn’t do the examining. (“After going on the Long March, there was greater support for the Communists in China.”) Who went on the Long March? There didn’t go on the Long March. Always pay attention to who’s doing what in your sentences.

Run-on sentence.

Run-on sentences string together improperly joined independent clauses. Consider these three sentences:

“Galileo recanted his teaching that the earth moved privately he maintained his convictions.” “Galileo recanted his teaching that the earth moved, privately he maintained his convictions.” “Galileo recanted his teaching that the earth moved, however, privately he maintained his convictions.”

The first fuses two independent clauses with neither a comma nor a coordinating conjunction; the second uses a comma but omits the coordinating conjunction; and the third also omits the coordinating conjunction (however is not a coordinating conjunction). To solve the problem, separate the two clauses with a comma and the coordinating conjunction but. You could also divide the clauses with a semicolon or make separate sentences. Remember that there are only seven coordinating conjunctions ( and, but, or, nor, for, so, yet ).

Sentence fragment.

Write in sentences. A sentence has to have a subject and a predicate. If you string together a lot of words, you may lose control of the syntax and end up with a sentence fragment. Note that the following is not a sentence:

“While in Western Europe railroad building proceeded rapidly in the nineteenth century, and in Russia there was less progress.”

Here you have a long compound introductory clause followed by no subject and no verb, and thus you have a fragment. You may have noticed exceptions to the no-fragments rule. Skilful writers do sometimes intentionally use a fragment to achieve a certain effect. Leave the rule-breaking to the experts.

Confusion of restrictive and nonrestrictive clauses.

Consider these two versions of the same sentence:

1. “World War I, which raged from 1914-1918, killed millions of Europeans.” 2. “World War I that raged from 1914-1918 killed millions of Europeans.”

The first sentence has a nonrestrictive relative clause; the dates are included almost as parenthetical information. But something seems amiss with the second sentence. It has a restrictive relative clause that limits the subject (World War I) to the World War I fought between 1914 and 1918, thus implying that there were other wars called World War I, and that we need to distinguish among them. Both sentences are grammatically correct, but the writer of the second sentence appears foolish.  Note carefully the distinction between that (for use in restrictive clauses, with no comma) and which (for use in nonrestrictive clauses, with a comma).

Confusion about who’s doing what.

Remember—history is about what people do, so you need to be vigilant about agency. Proofread your sentences carefully, asking yourself, “Have I said exactly who is doing or thinking what, or have I inadvertently attributed an action or belief to the wrong person or group?” Unfortunately, there are many ways to go wrong here, but faulty punctuation is among the most common. Here’s a sentence about Frantz Fanon, the great critic of European imperialism. Focus on the punctuation and its effect on agency: “Instead of a hierarchy based on class, Fanon suggests the imperialists establish a hierarchy based on race.” As punctuated, the sentence says something absurd: that Fanon is advising the imperialists about the proper kind of hierarchy to establish in the colonies. Surely, the writer meant to say that, in his analysis of imperialism, Fanon distinguishes between two kinds of hierarchy. A comma after suggests fixes the immediate problem. Now look at the revised sentence. It still needs work. Better diction and syntax would sharpen it.  Fanon does not suggest (with connotations of both hinting and advocating); he states outright. What’s more, the comparison of the two kinds of hierarchy gets blurred by too many intervening words. The key point of the sentence is, in effect, “instead of A, we have B.” Clarity demands that B follow A as closely as possible, and that the two elements be grammatically parallel. But between the elements A and B, the writer inserts Fanon (a proper noun), suggests (a verb), imperialists (a noun), and establish (a verb). Try the sentence this way: “Fanon says that the imperialists establish a hierarchy based on race rather than class.” Now the agency is clear: We know what Fanon does, and we know what the imperialists do. Notice that errors and infelicities have a way of clustering. If you find one problem in a sentence, look for others.

Confusion about the objects of prepositions.

Here’s another one of those common problems that does not receive the attention it merits. Discipline your prepositional phrases; make sure you know where they end. Notice the mess in this sentence: “Hitler accused Jewish people of engaging in incest and stating that Vienna was the ‘personification of incest.’” The reader thinks that both engaging and stating are objects of the preposition of. Yet the writer intends only the first to be the object of the preposition. Hitler is accusing the Jews of engaging , but not of stating ; he is the one doing the stating . Rewrite as “Hitler accused the Jews of incest; he stated that Vienna was the ‘personification of incest.’” Note that the wordiness of the original encouraged the syntactical mess. Simplify. It can’t be said too many times: Always pay attention to who’s doing what in your sentences.

Misuse of the comparative.

There are two common problems here. The first might be called the “floating comparative.” You use the comparative, but you don’t say what you are comparing. (“Lincoln was more upset by the dissolution of the union.”) More upset than by what? More upset than who? The other problem, which is more common and takes many forms, is the unintended (and sometimes comical) comparison of unlike elements. Consider these attempts to compare President Clinton to President George H. W. Bush. Often the trouble starts with a possessive:

“President Clinton’s sexual appetite was more voracious than President Bush.”

You mean to compare appetites, but you've forgotten about your possessive, so you absurdly compare an appetite to a man. Rewrite as “more voracious than President Bush’s.” A variation of this problem is the unintended comparison resulting from the omission of a verb:

“President Clinton liked women more than President Bush.”

Re-write as “more than did President Bush.”

A misplaced modifier may also cause comparison trouble: “Unlike the Bush administration, sexual scandal nearly destroyed the Clinton administration.” Rewrite as  “Unlike the Bush administration, the Clinton administration was nearly destroyed by sexual scandal.” Here the passive voice is better than the misplaced modifier, but you could rewrite as “The Bush administration had been free of sexual scandal, which nearly destroyed the Clinton administration.”

Misuse of apostrophe.

Get control of your apostrophes. Use the apostrophe to form singular or plural possessives (Washington’s soldiers; the colonies’ soldiers) or to form contractions (don’t; it’s). Do not use the apostrophe to form plurals. (“The communists [not communists’] defeated the nationalists [not nationalists’] in China.”)

Comma after although.

This is a new error, probably a carryover from the common conversational habit of pausing dramatically after although . ( “Although , coffee consumption rose in eighteenth-century Europe, tea remained far more popular.”) Delete the comma after although . Remember that although is not a synonym for the word however , so you cannot solve the problem in the sentence by putting a period after Europe . A clause beginning with although cannot stand alone as a sentence.

Comma between subject and verb.

This is a strange new error. (“Hitler and Stalin, agreed to a pact in August 1939.”) Delete the comma after Stalin. Finally, two hints: If your word-processing program underlines something and suggests changes, be careful. When it comes to grammar and syntax, your computer is a moron. Not only does it fail to recognize some gross errors, it also falsely identifies some correct passages as errors. Do not cede control of your writing decisions to your computer. Make the suggested changes only if you are positive that they are correct. If you are having trouble with your writing, try simplifying. Write short sentences and read them aloud to test for clarity. Start with the subject and follow it quickly with an active verb. Limit the number of relative clauses, participial phrases, adjectives, adverbs, and prepositional phrases. You will win no prizes for eloquence, but at least you will be clear. Add complexity only when you have learned to handle it.

An historical/an historian.

The consonant “H” is not silent in historical and historian , so the proper form of the indefinite article is “A.”

Avoid the common solecism of using feel as a synonym for think, believe, say, state, assert, contend, argue, conclude, or write. (“Marx felt that the bourgeoisie exploited the proletariat.” “Emmeline Pankhurst felt that British women should be able to vote.”) The use of feel in these sentences demeans the agents by suggesting undisciplined sentiment rather than carefully formulated conviction. Concentrate on what your historical actors said and did; leave their feelings to speculative chapters of their biographies. As for your own feelings, keep them out of your papers. (“I feel that Lincoln should have freed the slaves earlier.”) Your professor will be delighted that the material engages both your head and your heart, but your feelings cannot be graded. If you believe that Lincoln should have acted earlier, then explain, giving cogent historical reasons.

The fact that.

This is a clumsy, unnecessary construction. ( “The fact that Nixon resigned in disgrace damaged the Republican Party.”) Re-word as “Nixon resigned in disgrace, damaging the Republican Party.” Never use the hideous phrase due to the fact that.

In terms of.

This phrase is filler. Get rid of it. (“Bismarck was a success in terms of uniting Germany.) Rewrite as “Bismarck successfully united Germany.”

Attend carefully to the placement of this limiting word. Note, for example, these three sentences:

“The government only interred Japanese Americans during World War II.” “The government interred only Japanese Americans during World War II.” “The government interred Japanese Americans only during World War II.”

The first limits the action to interring (as opposed to, say, killing); the second limits the group interred (i.e., not Italian Americans); the third limits the time of interring (i.e., not during other wars).

Thus and therefore.

More than likely, you have not earned these words and are implying that you have said more than you actually have. Use them sparingly, only when you are concluding a substantial argument with a significant conclusion.

Misuse of instead.

Instead is an adverb, not a conjunction. Consider this sentence: “Charles Beard argued that the framers of the constitution were not idealists, instead they promoted their economic interests.” Revise as “The framers of the constitution, Charles Beard argued, did not uphold ideals; instead , they promoted their economic interests.” Now the instead appears properly as an adverb. (Note also that the two clauses are now parallel—both contain transitive verbs.)

Essentially and basically.

These are usually either filler words (the written equivalent of “uh” or “um”) or weasel words that merely call attention to your vagueness, lack of conviction, or lazy unwillingness to qualify precisely. (“ Essentially , Churchill believed that Nazi Germany presented a grave danger to Britain.”) Delete essentially and basically unless you are writing about essences or bases.

Both share or both agree.

These are redundant. If two people share or agree , they are both involved by definition. (“Stalin and Mao both agreed that capitalism belonged in the dustbin of history.”) Delete both .

This word means one of a kind. It is an absolute. Something cannot be very unique, more unique, or somewhat unique.

Incredible.

In casual conversation incredible often means extraordinary, astonishing, or impressive (“Yesterday’s storm was incredible.”). To avoid confusion in historical prose, you should stick with the original meaning of incredible : not believable. If you write that “William Jennings Bryan gave incredible speeches,” you’re saying that you don’t believe his speeches, or that his audiences didn’t believe them at the time—in other words, that he appeared to be lying or mistaken. You probably mean that he gave great speeches. If you write that “It’s incredible that Japan attacked Pearl Harbor,” you’re calling into question the very existence of a historical event. You probably mean that the Japanese attack was unwise or reckless. English is rich with adjectives. Finding the best one forces you to think about what you really mean.

As a synonym for subject matter, bone of contention, reservation, or almost anything else vaguely associated with what you are discussing, the word issue has lost its meaning through overuse. (“There were many issues involved with Truman’s decision to use the atomic bomb, and some historians have issues with his decision.”) Stop talking about issues and get to the point.

Beware of the word literally . It’s commonly misused, and you almost never need it in historical prose. Literally means actually, factually, exactly, directly, without metaphor. The careful writer would never say, “Roosevelt literally swamped Landon in the election of 1936.” One imagines Roosevelt (in his wheelchair no less!) dumping the hapless Landon off a pier in the Everglades on election night. The swamping was figurative, strictly a figure of speech. The adverb literally may also cause you trouble by falsely generalizing the coverage of your verb. “London was literally destroyed by the blitz.” This suggests that the whole city was destroyed, when, in fact, only parts were destroyed. Rewrite as “The blitz destroyed parts of London.” Now you’ve qualified properly (and gotten rid of the passive).

When you’re tempted to use this word, resist. Like issue , involve tells the reader too little. (“Erasmus was involved in the Renaissance.”) This statement could mean virtually anything. Delete it and discuss specifically what Erasmus said or did.

This is a fine old word with many precise meanings, but as an overused synonym for feature, side, or part, it is usually a sign of insipid prose (“Another aspect of the issues in this area is the fact that...”). Just get directly to the point.

Most good writers frown on the use of this word as a verb.(“Eisenhower’s military background impacted his foreign policy.”) Affected, influenced, or shaped would be better here. Impacted suggests painfully blocked wisdom teeth or feces. Had an impact is better than impacted , but is still awkward because impact implies a collision.

Here is another beloved but vapid word. (“Many factors led to the Reformation.”) Such a sentence usually opens a vague, boring, weaseling paragraph. If you believe (quite reasonably) that the Reformation had many causes, then start evaluating them.

Meaningful.

Overuse has drained the meaning from meaningful . (“Peter the Great took meaningful steps to westernize Russia.”) Just get to the point.

Interesting.

The adjective interesting is vague, overused, and does not earn its keep. (“Burckhardt had an interesting perspective on the Renaissance.”) This sentence is filler. Delete it and explain and analyze his perspective.

The events that transpired.

Your professor will gag on this one. Events take place or happen by definition, so the relative clause is redundant. Furthermore, most good writers do not accept transpire as a synonym for happen. Again, follow the old rule of thumb: Get right to the point, say what happened, and explain its significance. You don’t need any filler about events and transpiring .

The reason is because.

This phrase is awkward and redundant. Replace it with the reason is, or better still, simply delete it and get right to your reason.

For all intensive purposes.

The phrase is for all intents and purposes , and few good writers use it in formal prose anyway.

Take for granite.

This is an illiteracy. The phrase is “ take for granted .”

Should of/could of.

You mean should have or could have .

Center around.

Good writers frown on this phrase because it’s illogical and jarring. Use center on or center in. Attention to a small detail like this indicates that you’re thinking carefully about what you’re saying, so when the big problems confront you, you’ll be disciplined and ready.

Begs the question.

Recently, many people have started to use this phrase to mean raises, invites, or brings up the question. (“Stalin’s purges beg the question of whether he was paranoid.”) Actually, begging the question is the common logical fallacy of assuming your conclusion as part of your argument. (“In the late nineteenth century, many Americans moved to the cities because of urbanization.”) Note that the use of abstractions (e.g., urbanization) encourages begging the question . Understanding this fallacy is central to your education. The formal Latin term, petitio principii, is too fancy to catch on, so you need to preserve the simple English phrase. If something raises a question, just say so.

Historic/historical confusion.

Everything in the past or relating to the past is historical. Resist the media-driven hype that elevates the ordinary to the historic . (“A three-alarm fire last night destroyed the historic site of the first Portuguese-owned dry cleaners in Cleveland.”) Reserve the word historic for the genuinely important events, persons, or objects of the past. The Norman invasion of England in 1066 was indeed historic . Historically , historians have gathered annually for a historical convention; so far, none of the conventions has been historic .

Affect/effect confusion.

The chances are that the verb you want is affect , which means to have an influence on (“The Iranian hostage crisis affected [not effected] the presidential election of 1980”). Effect as a verb means to bring about or cause to exist ( effect change). Effect as a noun means result or consequence (“The effect of the Iranian hostage crisis on the election...”).

While/whereas confusion.

If you’re stressing contrast, the word you want is whereas . While stresses simultaneity. “Hobbes had a dismal view of human nature, whereas [not while] Rousseau believed that man had a natural sense of pity.”

It’s/its confusion.

This is the classic bonehead error. Note that the spell checker won’t help you. And remember— its’ is not a word at all.

Reign/rein confusion.

A queen reigns during her reign. You rein in a horse with reins.

Their/there/they’re confusion.

You do know the difference. Pay attention.

Everyday/every day confusion.

As an adjective, everyday (one word) means routine. If you wish to say that something happened on every successive day, then you need two words, the adjective every and the noun day . Note the difference in these two sentences: “Kant was famous for going on the same constitutional at the same time every day . For Kant, exercise and thinking were everyday activities.”

Refer/allude confusion.

To allude means to refer to indirectly or to hint at. The word you probably want in historical prose is refer , which means to mention or call direct attention to. “In the first sentence of the ‘Gettysburg Address’ Lincoln refers [not alludes ] to the fathers of the nation [he mentions them directly]; he alludes to the ‘Declaration of Independence’ [the document of four score and seven years earlier that comes to the reader’s mind, but that Lincoln doesn’t directly mention].”

Novel/book confusion.

Novel is not a synonym for book. A novel is a long work of fiction in prose. A historical monograph is not a novel —unless the historian is making everything up.

Than/then confusion.

This is an appalling new error. If you are making a comparison, you use the conjunction than . (“President Kennedy’s health was worse than [not then ] the public realized.”)

Lead/led confusion.

The past tense of the verb to lead is led (not lead ). “Sherman led [not lead ] a march to the sea.”

Lose/loose confusion.

The opposite of win is lose , not loose . “Supporters of the Equal Rights Amendment suspected that they would lose [not loose ] the battle to amend the constitution.”

However/but confusion.

However may not substitute for the coordinating conjunction but. (“Mussolini began his career as a socialist, but [not however ] he later abandoned socialism for fascism.”) The word however has many proper uses; however , [note the semicolon and comma] graceful writers use it sparingly.

Cite/site/sight confusion.

You cited a source for your paper; ancient Britons sited Stonehenge on a plain; Columbus’s lookout sighted land.

Conscience/conscious confusion.

When you wake up in the morning you are conscious , though your conscience may bother you if you’ve neglected to write your history paper.

Tenet/tenant confusion.

Your religion, ideology, or worldview all have tenets —propositions you hold or believe in. Tenants rent from landlords.

All are not/not all are confusion.

If you write, “ All the colonists did not want to break with Britain in 1776,” the chances are you really mean, “ Not all the colonists wanted to break with Britain in 1776.” The first sentence is a clumsy way of saying that no colonists wanted to break with Britain (and is clearly false). The second sentence says that some colonists did not want to break with Britain (and is clearly true, though you should go on to be more precise).

Nineteenth-century/nineteenth century confusion.

Historians talk a lot about centuries, so you need to know when to hyphenate them. Follow the standard rule: If you combine two words to form a compound adjective, use a hyphen, unless the first word ends in ly. (“ Nineteenth-century [hyphenated] steamships cut the travel time across the Atlantic.”) Leave out the hyphen if you’re just using the ordinal number to modify the noun century. (“In the nineteenth century [no hyphen] steamships cut the travel time across the Atlantic.”) By the way, while you have centuries in mind, don’t forget that the nineteenth century is the 1800s, not the 1900s. The same rule for hyphenating applies to middle-class and middle class —a group that historians like to talk about.

Bourgeois/bourgeoisie confusion.

Bourgeois is usually an adjective, meaning characteristic of the middle class and its values or habits. Occasionally, bourgeois is a noun, meaning a single member of the middle class. Bourgeoisie is a noun, meaning the middle class collectively. (“Marx believed that the bourgeoisie oppressed the proletariat; he argued that bourgeois values like freedom and individualism were hypocritical.”)

Your professor may ask you to analyze a primary document. Here are some questions you might ask of your document. You will note a common theme—read critically with sensitivity to the context. This list is not a suggested outline for a paper; the wording of the assignment and the nature of the document itself should determine your organization and which of the questions are most relevant. Of course, you can ask these same questions of any document you encounter in your research.

• What exactly is the document (e.g., diary, king’s decree, opera score, bureaucratic memorandum, parliamentary minutes, newspaper article, peace treaty)?
• Are you dealing with the original or with a copy? If it is a copy, how remote is it from the original (e.g., photocopy of the original, reformatted version in a book, translation)? How might deviations from the original affect your interpretation?
• What is the date of the document?
• Is there any reason to believe that the document is not genuine or not exactly what it appears to be?
• Who is the author, and what stake does the author have in the matters discussed? If the document is unsigned, what can you infer about the author or authors?
• What sort of biases or blind spots might the author have? For example, is an educated bureaucrat writing with third-hand knowledge of rural hunger riots?
• Where, why, and under what circumstances did the author write the document?
• How might the circumstances (e.g., fear of censorship, the desire to curry favor or evade blame) have influenced the content, style, or tone of the document?
• Has the document been published? If so, did the author intend it to be published?
• If the document was not published, how has it been preserved? In a public archive? In a private collection? Can you learn anything from the way it has been preserved? For example, has it been treated as important or as a minor scrap of paper?
• Does the document have a boilerplate format or style, suggesting that it is a routine sample of a standardized genre, or does it appear out of the ordinary, even unique?
• Who is the intended audience for the document?
• What exactly does the document say? Does it imply something different?
• If the document represents more than one viewpoint, have you carefully distinguished between the author’s viewpoint and those viewpoints the author presents only to criticize or refute?
• In what ways are you, the historian, reading the document differently than its intended audience would have read it (assuming that future historians were not the intended audience)?
• What does the document leave out that you might have expected it to discuss?
• What does the document assume that the reader already knows about the subject (e.g., personal conflicts among the Bolsheviks in 1910, the details of tax farming in eighteenth-century Normandy, secret negotiations to end the Vietnam war)?
• What additional information might help you better interpret the document?
• Do you know (or are you able to infer) the effects or influences, if any, of the document?
• What does the document tell you about the period you are studying?
• If your document is part of an edited collection, why do you suppose the editor chose it? How might the editing have changed the way you perceive the document? For example, have parts been omitted? Has it been translated? (If so, when, by whom, and in what style?) Has the editor placed the document in a suggestive context among other documents, or in some other way led you to a particular interpretation?

Your professor may ask you to write a book review, probably of a scholarly historical monograph. Here are some questions you might ask of the book. Remember that a good review is critical, but critical does not necessarily mean negative. This list is not meant to be exhaustive, nor is it a suggested outline. Of course, you can ask these same questions of any secondary historical work, even if you’re not writing a review.

• Who is the author, and what are his or her qualifications? Has the author written other books on the subject?
• When was the book written, and how does it fit into the scholarly debate on the subject? For example, is Smith writing to refute that idiot Jones; to qualify the work of the competent but unimaginative Johnson; or to add humbly to the evidence presented by the redoubtable Brown’s classic study? Be sure not to confuse the author’s argument with those arguments he or she presents only to criticize later.
• What is the book’s basic argument? (Getting this right is the foundation of your review.)
• What is the author’s method? For example, does the author rely strictly on narrative and anecdotes, or is the book analytical in some way?
• What kinds of evidence does the author use? For example, what is the balance of primary and secondary sources? Has the author done archival work? Is the source base substantial, or does it look thin? Is the author up-to-date in the scholarly literature?
• How skillfully and imaginatively has the author used the evidence?
• Does the author actually use all of the material in the bibliography, or is some of it there for display?
• What sorts of explicit or implicit ideological or methodological assumptions does the author bring to the study? For example, does he or she profess bland objectivity? A Whig view of history? Marxism?
• How persuasive is the author’s argument?
• Is the argument new, or is it old wine in new bottles?
• Is the argument important, with wide-ranging implications, or is it narrow and trivial?
• Is the book well organized and skillfully written?
• What is your overall critical assessment of the book?
• What is the general significance, if any, of the book? (Make sure that you are judging the book that the author actually wrote, not complaining that the author should have written a different book.)

Here are some tips for those long, intimidating term papers or senior theses:

• Start early. If you don’t, none of these tips will matter. Big trouble is looming if you don’t have a specific topic by the end of the first week. You should be delving into the sources during the second week.
• Keep in mind all of the dos and don’ts in this booklet.
• Work closely with your professor to assure that your topic is neither too broad nor too narrow.
• Set up a schedule with your professor and check his or her policy about reading rough drafts or parts of rough drafts. Then keep your professor informed about what you’re doing. You don’t want any unpleasant surprises. You certainly don’t want to hear, “I haven’t seen you for weeks, and it sounds like you’re way off base. How can you possibly get this done with only two weeks left in the semester?”
• Make an appointment with Kristin Strohmeyer, the history reference librarian in Burke Library. She will help you to find and use the appropriate catalogs and indexes.
• Use your imagination in compiling a bibliography. Think of all of the possible key words and subjects that may lead you to material. If you find something really good, check the subjects under which it is cataloged. Comb the notes and bibliographies of books and articles you’ve already found.
• Much of what you need will not be in our library, so get to know the friendly folks in the Interlibrary Loan department.
• Start early. This can’t be said too often.
• Use as many primary sources as you can.
• Jot down your ideas as they come to you. You may not remember them later.
• Take careful notes on your reading. Label your notes completely and precisely. Distinguish meticulously and systematically between what you are directly quoting and what you are summarizing in your own words. Unintended plagiarism is still plagiarism. Stay clean as a hound’s tooth. Write down not just the page of the quotation or idea, but also the whole run of pages where the matter is discussed. Reread all of your notes periodically to make sure that you still understand them and are compiling what you will need to write your paper. Err on the side of writing down more than you think you will need. Copious, precise notes won’t come back to haunt you; skimpy, vague notes will. Just accept that there is something anal about good note-taking.
• If you take notes directly into your computer, they will be easy to index and pull up, but there are a couple of downsides. You will not be able to see all of them simultaneously, as you can note cards laid out on a big table. What you gain in ease of access may come at the price of losing the big picture. Also, if your notes are in your computer, you may be tempted to save time and thought by pasting many of them directly into your paper. Note cards encourage you to rethink and to rework your ideas into a unified whole.
• Don’t start to write until you have a good outline.
• Make sure that your paper has a thesis. (See the entry State a clear thesis. )
• Check and recheck your facts.
• Footnote properly. (See the entry Cite sources carefully .)
• Save plenty of time to proofread.
• Start early.

Top Ten Signs that you may be Writing a Weak History Paper

10. You’re overjoyed to find that you can fill the required pages by widening all margins.

9. You haven’t mentioned any facts or cited any sources for several paragraphs.

8. You find yourself using the phrase “throughout history mankind has...”

7. You just pasted in another 100 words of quotations.

6. You haven’t a clue about the content of your next paragraph.

5. You’re constantly clicking on The Britannica, Webster’s, and Bartlett’s.

4. Your writing tutor sneaks another look at her watch as she reminds you for the third time to clarify your thesis.

3. Your main historical actors are this, it, they, the people, and society, and they are all involved with factors, aspects, impacts, and issues.

2. You just realize that you don’t understand the assignment, but it’s 3:00 A.M, the paper is due at 9:00, and you don’t dare call your professor.

1. You’re relieved that the paper counts for only 20 percent of the course grade.

Final Advice

You guessed it — start early.

Studying History at Hamilton

Students will learn to use interdisciplinary methods from the humanities and social sciences to probe the sources of the past for answers to present questions. They will learn to draw comparisons and connections among diverse societies across a range of historical eras. They will further learn to convey their findings through writing that is clearly structured, precise, and persuasive.

Office / Department Name

Nesbitt-Johnston Writing Center

Contact Name

Jennifer Ambrose

Writing Center Director

Help us provide an accessible education, offer innovative resources and programs, and foster intellectual exploration.

Site Search

• Search Menu
• Advance articles
• Author Guidelines
• Submission Site
• Open Access Policy
• Self-Archiving Policy
• Why Publish with Historical Research?
• About Historical Research
• About the Institute of Historical Research
• Editorial Board
• Advertising & Corporate Services
• Journals on Oxford Academic
• Books on Oxford Academic

Sara Charles Claire Langhamer

About the journal

Published since 1923,  Historical Research , flagship publication of the  Institute of Historical Research , is a leading generalist history journal, covering the global history of the early middle ages to the twenty-first century...

Classic articles from the recent archives

The new virtual issue from Historical Research shines a light on some of the classic articles from the journal’s recent archive. It features some of the most read and most cited articles from the journal’s archives and covers a wide range of topics of perennial interest to both historians and to a wider readership.

Browse the virtual issue  

2020 Historical Research lecture, video now available

The video of this year's lecture -- 'Writing histories of 2020' -- held on 29 July, is now available. With panellists Professors Jo Fox, Claire Langhamer, Kevin Siena and Richard Vinen who discuss historians' responses to COVID-19 and Black Lives Matter.

Watch the video of the 2020 lecture

Never miss an issue

Register for email alerts to receive a notification straight to your inbox each time a new issue publishes.

Join the mailing list

IHR guide to free research resources

From April 2020, the Institute of Historical Research has created a listing of free research materials for historians currently unable to access libraries and archives. The list is regularly extended as researchers offer new suggestions.

Access the resources

Latest articles

Latest posts on x, on history blog, using the bibliography of british and irish history (bbih) as a phd research tool – phil winterbottom , glimpses of a transnational life: frank mathew and imports of everyday goods in fifteenth century london., bibliography of british and irish history february 2024 update , new lgbtq+ history acquisitions in the ihr library, victoria county history smartphone app: retirement, the annual pollard prize, about the prize.

The Pollard Prize is awarded annually for the best paper presented at an Institute of Historical Research seminar by a postgraduate student or by a researcher within one year of completing the PhD. The prize is supported by Oxford University Press.

Find out more about the prize and eligibility requirements on the IHR website .

2021 prize winners

Congratulations to Merve Fejzula for winning the Annual Pollard Prize for 2021 with their paper 'Toward a History of Intellectual Labor: Gender, Negritude, and the Black Public Sphere.' Congratulations also to runner up Lucy Clarke  for their paper '"I say I must for I am the King’s shrieve": magistrates invoking the monarch’s name in 1 Henry VI (1592) and The Downfall of Robert Earl of Huntingdon (1598)'.

Both papers will be published in  Historical Research  in due course.

Institute of Historical Research

The Institute of Historical Research is the UK's national centre for history, dedicated to supporting historians of all kinds.

Find out more about IHR

Reviews in History

Launched in 1996, Reviews in History now contains more than 2200 reviews, published monthly and are freely accessible as Open Access. Reviews are written by specialists in the field and all authors reviewed have an opportunity to respond.

Explore the latest reviews

On History  blog

Explore news, articles, and research from  On History , a digital magazine curated and published by the Institute of Historical Research.

View the latest posts

The IHR’s new mission and strategy, 2020-2025

The IHR is pleased to launch its new mission and strategy, setting out the values and vision for the IHR in the coming years.

Read the strategy

Related Titles

• Recommend to Your Librarian
• Advertising and Corporate Services

Affiliations

• Online ISSN 1468-2281
• Print ISSN 0950-3471
• Copyright © 2024 Institute of Historical Research
• About Oxford Academic
• Publish journals with us
• University press partners
• What we publish
• New features  
• Open access
• Institutional account management
• Rights and permissions
• Get help with access
• Accessibility
• Advertising
• Media enquiries
• Oxford University Press
• Oxford Languages
• University of Oxford

Oxford University Press is a department of the University of Oxford. It furthers the University's objective of excellence in research, scholarship, and education by publishing worldwide

• Copyright © 2024 Oxford University Press
• Cookie settings
• Cookie policy
• Privacy policy
• Legal notice

This Feature Is Available To Subscribers Only

Sign In or Create an Account

This PDF is available to Subscribers Only

For full access to this pdf, sign in to an existing account, or purchase an annual subscription.

• University of Wisconsin–Madison
• University of Wisconsin-Madison
• Research Guides
• Introduction to Historical Research

Introduction to Historical Research : Citations

• Archival sources
• Multimedia sources
• Newspapers and other periodicals
• Biographical Information
• Government documents

Citation Style Manuals

Citation Styles: Resources and Examples

• Chicago Documentation from The Writing Center @UW-Madison Chicago Style originated at the University of Chicago Press and supports two documentation styles: one for the arts and humanities and one for the social sciences
• Citing Sources A research guide created to teach and aide students in citing source.
• MLA Documentation from The Writing Center @ UW-Madison MLA style is the citation style of the Modern Language Association. It is widely used in the humanities, especially in writing on language and literature. ​
• Turabian Documentation from Writing Center @ UW-Madison Turabian is named for Kate Larimore Turabian who was the graduate school dissertation secretary at the University of Chicago and is based on the Chicago Manual of Style

Manage your References

Citation managers  help you collect references and files from online databases, share references with others, and format citations and bibliographies.  The following tools are supported by UW-Madison Libraries.

• EndNote EndNote is desktop citation management software. It may be more appropriate if you are writing for publication.
• EndNote Basic EndNote Basic is a Web-based citation manager free to UW-Madison staff and students that can be used as a standalone citation manager or in conjunction with EndNote Desktop.
• Mendeley Mendeley is a free, Web and desktop-based citation manager and academic networking tool. Free version comes with 1GB storage space and private group up to 3 members.
• Zotero Zotero is an open source citation manager and academic social networking tool. Two versions include a Firefox browser extension and Zotero standalone that works with other browsers.
• Compare Citation Managers
• << Previous: Government documents
• Last Updated: Mar 4, 2024 12:48 PM
• URL: https://researchguides.library.wisc.edu/introhist

Want to create or adapt books like this? Learn more about how Pressbooks supports open publishing practices.

8 Archives and Historical Research

While a larger and larger proportion of primary sources have been digitized, there will always be physical archives.  In this section, you’ll learn what archives are, why they exist, and how to take advantage of them. Sifting through actual documents and artifacts from the past can be great fun, and if you have the opportunity to visit an archive as a part of writing a historical research paper for a class, you should do so. Read up here and consider visiting an archival collection near you to locate unique sources.

Archives are the documents and records from individuals, organizations, and governments that have been preserved and made available to researchers because of their enduring value.  Archives aren’t just for historians, of course, they are saved for everyone. They are important because they provide evidence of activities and tell us more about individuals and institutions. They also tell stories and increase our sense of identity and understanding of cultures, societies, and human actions. They can even be used to protect hard-won civil, political, legal, and economic rights and to ensure justice. The bottom-line is archives are important to understanding the past and to documenting and protecting our rights as citizens.

Libraries and Archives

Chances are you have used libraries in the past for leisure reading, special programs, school projects, or a host of other activities. Libraries and their look, feel, and organization are familiar to most of us. Not so much archives. On the most basic level, libraries and archives are information providers, though they deliver information in different ways, and the type of information they contain is often different.

For example, libraries contain published works (books, journals, magazines, newspapers, electronic databases, etc.) created to educate, inform, and entertain, while archives contain mostly unpublished materials produced by individuals, organizations, and governments through normal day-to-day activities and only later are saved because they tell us something important about the past. A library’s collection is not unique, since most of the works it acquires are produced in multiple copies and sold to other libraries across the country. Archival holdings, however, are unique. You won’t find archival records in one repository duplicated anywhere else. There is an old cliché that says “libraries are for readers, while archives are for writers.” All sorts of people use libraries, but those planning to create knowledge for others use archives. While there are exceptions to this cliché, of course, we hope you get the point.

Because of their unique holdings, archival institutions oftentimes have well developed preservation, conservation, and security plans in place designed to protect and preserve their collections. After all, if an archival document is destroyed or stolen, it can’t be replaced. The limiting factor for libraries to replace missing items is money—does the library have the funds to purchase replacements? As a result, most libraries allow their materials to circulate outside the library and then replace lost and stolen items as needed. Archival materials are almost never allowed to leave the archives because they can’t be replaced.

Libraries and archives also process materials differently. Generally speaking, libraries catalog resources at the item level. You can search a library’s online catalog by subject, author, title, keyword, etc., and find discrete items focusing on your subject. Archives collections are maintained and processed at the collection level, and many collections have literally thousands of items in them (some considerably more). Rather than cataloging individual items in archival collections, archivists produce finding aids for collections as a whole. These finding aids, rather than library catalog records, are the access tools for researchers.  You can read more about how finding aids work below , but archives are also staffed by archivists, who help researchers as part of their jobs.  Don’t hesitate to ask them for help!

For a full discussion of the principles behind collecting for archives and the pathway to becoming an archivist, see the chapter on archiving as a profession – “Becoming an Archivist.”

Archives in the Dallas-Fort Worth Region

If you’re ready to work with an archive as part of your research project, there are plenty of options in the Dallas-Fort Worth region. These archives could be important for any number of different research topics from those pertaining to local history or to federal history, from cultural or religious history, to the history of technology or politics and many different topics in between.What follows is a list of some of the archives in the DFW metroplex, along with links to their homepages. Accessing their websites will give you information about the types of historical sources they have and what their use policies are.

City Archives

Dallas Municipal Archives

Dallas Public Library Special Collections (has a number of collections focusing on Dallas)

Fort Worth Public Library Genealogy, History, and Archives Department (houses numerous Fort Worth collections)

Most of the public libraries in the suburbs have local history collections too. Many of these collections also contain archival materials.

County Archives

Tarrant County Archives

Museum Collections

Amon Carter Museum of American Art

Dallas Historical Society

Dallas Holocaust and Human Rights Museum, Library and Archives

Dallas Jewish Historical Society

Dallas Museum of Art Archives

Documentary Arts, Dallas, Texas African American Photography Archive

Fort Museum of Science and History, Library and Archives

Frontiers of Flight Museum Research Library

Perot Museum of Nature and Science

University Collections

SMU Bridwell Library Archives

SMU DeGolyer Library

SMU Hamon Arts Library Bywaters Special Collections

Southwestern Baptist Theological Seminary J. T. and Zelma Luther Archives

TCU Library Special Collections

Texas Woman’s University Library Woman’s Collection

University of Dallas Library Archives and Special Collections 

University of North Texas Library Special Collections

University of Texas at Arlington Libraries Special Collections

University of Texas at Dallas Library Special Collections

Researching in Archives

As mentioned earlier, archives are different animals than libraries, and their policies and procedures reflect this. When visiting an archive for research purposes, be prepared to follow their rules, but also try to understand why these rules are in place. Remember, archival repositories hold unique collections that are impossible to replace, so user policies are more restrictive than those of libraries.

Most archives have a similar set of policies and procedures, including requiring you to register once you arrive to conduct research. In most archives, you will be asked to register as a user by showing some form of personal identification and completing a user form (which the archives will keep to document your visit). You may also be asked to lock up purses, backpacks, notebooks, and other non-essential items, only bringing paper, pencil (ink is prohibited in most archives because an errant mark can damage materials), or a computer into the research room for note-taking. A staff member will then conduct a reference interview with you to find out about your research focus and to help determine if, or how, the archives’ collection can help.

Once appropriate collections are identified, an archivist may provide a finding aid to each collection you want to use. A finding aid is an important access and descriptive tool for archival collections. Finding aids reveal information about who or what organization created the collection, the scope of the topics reflected in the collection, the dates of the materials in the collection, and a container list, showing what is in each box of the collection. By using the finding aid, you will be able to request specific boxes and folders from the collection. (A helpful site to finding aids in a number of archival institutions across Texas can be found at Texas Archival Resources Online .)

At this point, the archives staff will probably ask you to fill out “call-slips,” where you request specific boxes and/or folders from the collections you are interested in. The staff will retrieve the boxes/folders and bring them to you in the research room. Don’t be surprised if they give you one box at a time and require you to sit at a table that is being monitored by staff and/or video cameras. Keep in mind that security is a priority in all archival institutions. You will not be allowed to take the materials out of the research room, so your research must be conducted when the archives is open. Budget your time accordingly, keeping in mind that archives have limited hours, and archival research takes time and is unlike using books and other sources, which have indexes and other precise access tools.

Be sure when taking notes from an archives collection that you include bibliographic information that you will need later in order to cite the collection and its contents in your footnotes and bibliography. Many finding aids will show you how to cite a collection, but not all will. If the finding aid you are using doesn’t give you the bibliographic citation, then record the complete title of the collection, the collection’s unique identifying number (if it has one), the box and folder numbers you used, as well as the folder titles. As long as you have this information, then you will be able to write your footnotes and bibliography using any footnoting style and format.

When you find material that you want to copy or scan, then ask the staff about the archives’ copy policy. Some archives will allow you to scan documents using your phone or camera, while others may require that all copies and scans be done by staff members, who will charge you a fee to defray costs. If you think that publishing some of the items you are using may occur in the future (or even if there is only a remote possibility), then be aware that some archives have publication fees associated with the reproduction of archival materials in books, videos, advertisements, television, and other products, especially if these products are commercial in nature (as opposed to being sponsored by non-profits). It never hurts to request the archives’ fee schedule, so you will have this information.

Once you have completed your research, then return the archival boxes/folders to the staff member at the reference desk, retrieve the personal items you locked up when you registered, and depart. If you find that you have questions after leaving the archives, feel free to contact the archives staff to get the answers. They are happy to help.

How History is Made: A Student’s Guide to Reading, Writing, and Thinking in the Discipline Copyright © 2022 by Stephanie Cole; Kimberly Breuer; Scott W. Palmer; and Brandon Blakeslee is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License , except where otherwise noted.

Share This Book

• Privacy Policy

Buy Me a Coffee

Home » Historical Research – Types, Methods and Examples

Historical Research – Types, Methods and Examples

Table of Contents

Historical Research

Definition:

Historical research is the process of investigating and studying past events, people, and societies using a variety of sources and methods. This type of research aims to reconstruct and interpret the past based on the available evidence.

Types of Historical Research

There are several types of historical research, including:

Descriptive Research

This type of historical research focuses on describing events, people, or cultures in detail. It can involve examining artifacts, documents, or other sources of information to create a detailed account of what happened or existed.

Analytical Research

This type of historical research aims to explain why events, people, or cultures occurred in a certain way. It involves analyzing data to identify patterns, causes, and effects, and making interpretations based on this analysis.

Comparative Research

This type of historical research involves comparing two or more events, people, or cultures to identify similarities and differences. This can help researchers understand the unique characteristics of each and how they interacted with each other.

Interpretive Research

This type of historical research focuses on interpreting the meaning of past events, people, or cultures. It can involve analyzing cultural symbols, beliefs, and practices to understand their significance in a particular historical context.

Quantitative Research

This type of historical research involves using statistical methods to analyze historical data. It can involve examining demographic information, economic indicators, or other quantitative data to identify patterns and trends.

Qualitative Research

This type of historical research involves examining non-numerical data such as personal accounts, letters, or diaries. It can provide insights into the experiences and perspectives of individuals during a particular historical period.

Data Collection Methods

Data Collection Methods are as follows:

• Archival research : This involves analyzing documents and records that have been preserved over time, such as government records, diaries, letters, newspapers, and photographs. Archival research is often conducted in libraries, archives, and museums.
• Oral history : This involves conducting interviews with individuals who have lived through a particular historical period or event. Oral history can provide a unique perspective on past events and can help to fill gaps in the historical record.
• Artifact analysis: This involves examining physical objects from the past, such as tools, clothing, and artwork, to gain insights into past cultures and practices.
• Secondary sources: This involves analyzing published works, such as books, articles, and academic papers, that discuss past events and cultures. Secondary sources can provide context and insights into the historical period being studied.
• Statistical analysis : This involves analyzing numerical data from the past, such as census records or economic data, to identify patterns and trends.
• Fieldwork : This involves conducting on-site research in a particular location, such as visiting a historical site or conducting ethnographic research in a particular community. Fieldwork can provide a firsthand understanding of the culture and environment being studied.
• Content analysis: This involves analyzing the content of media from the past, such as films, television programs, and advertisements, to gain insights into cultural attitudes and beliefs.

Data Analysis Methods

• Content analysis : This involves analyzing the content of written or visual material, such as books, newspapers, or photographs, to identify patterns and themes. Content analysis can be used to identify changes in cultural values and beliefs over time.
• Textual analysis : This involves analyzing written texts, such as letters or diaries, to understand the experiences and perspectives of individuals during a particular historical period. Textual analysis can provide insights into how people lived and thought in the past.
• Discourse analysis : This involves analyzing how language is used to construct meaning and power relations in a particular historical period. Discourse analysis can help to identify how social and political ideologies were constructed and maintained over time.
• Statistical analysis: This involves using statistical methods to analyze numerical data, such as census records or economic data, to identify patterns and trends. Statistical analysis can help to identify changes in population demographics, economic conditions, and other factors over time.
• Comparative analysis : This involves comparing data from two or more historical periods or events to identify similarities and differences. Comparative analysis can help to identify patterns and trends that may not be apparent from analyzing data from a single historical period.
• Qualitative analysis: This involves analyzing non-numerical data, such as oral history interviews or ethnographic field notes, to identify themes and patterns. Qualitative analysis can provide a rich understanding of the experiences and perspectives of individuals in the past.

Historical Research Methodology

Here are the general steps involved in historical research methodology:

• Define the research question: Start by identifying a research question that you want to answer through your historical research. This question should be focused, specific, and relevant to your research goals.
• Review the literature: Conduct a review of the existing literature on the topic of your research question. This can involve reading books, articles, and academic papers to gain a thorough understanding of the existing research.
• Develop a research design : Develop a research design that outlines the methods you will use to collect and analyze data. This design should be based on the research question and should be feasible given the resources and time available.
• Collect data: Use the methods outlined in your research design to collect data on past events, people, and cultures. This can involve archival research, oral history interviews, artifact analysis, and other data collection methods.
• Analyze data : Analyze the data you have collected using the methods outlined in your research design. This can involve content analysis, textual analysis, statistical analysis, and other data analysis methods.
• Interpret findings : Use the results of your data analysis to draw meaningful insights and conclusions related to your research question. These insights should be grounded in the data and should be relevant to the research goals.
• Communicate results: Communicate your findings through a research report, academic paper, or other means. This should be done in a clear, concise, and well-organized manner, with appropriate citations and references to the literature.

Applications of Historical Research

Historical research has a wide range of applications in various fields, including:

• Education : Historical research can be used to develop curriculum materials that reflect a more accurate and inclusive representation of history. It can also be used to provide students with a deeper understanding of past events and cultures.
• Museums : Historical research is used to develop exhibits, programs, and other materials for museums. It can provide a more accurate and engaging presentation of historical events and artifacts.
• Public policy : Historical research is used to inform public policy decisions by providing insights into the historical context of current issues. It can also be used to evaluate the effectiveness of past policies and programs.
• Business : Historical research can be used by businesses to understand the evolution of their industry and to identify trends that may affect their future success. It can also be used to develop marketing strategies that resonate with customers’ historical interests and values.
• Law : Historical research is used in legal proceedings to provide evidence and context for cases involving historical events or practices. It can also be used to inform the development of new laws and policies.
• Genealogy : Historical research can be used by individuals to trace their family history and to understand their ancestral roots.
• Cultural preservation : Historical research is used to preserve cultural heritage by documenting and interpreting past events, practices, and traditions. It can also be used to identify and preserve historical landmarks and artifacts.

Examples of Historical Research

Examples of Historical Research are as follows:

• Examining the history of race relations in the United States: Historical research could be used to explore the historical roots of racial inequality and injustice in the United States. This could help inform current efforts to address systemic racism and promote social justice.
• Tracing the evolution of political ideologies: Historical research could be used to study the development of political ideologies over time. This could help to contextualize current political debates and provide insights into the origins and evolution of political beliefs and values.
• Analyzing the impact of technology on society : Historical research could be used to explore the impact of technology on society over time. This could include examining the impact of previous technological revolutions (such as the industrial revolution) on society, as well as studying the current impact of emerging technologies on society and the environment.
• Documenting the history of marginalized communities : Historical research could be used to document the history of marginalized communities (such as LGBTQ+ communities or indigenous communities). This could help to preserve cultural heritage, promote social justice, and promote a more inclusive understanding of history.

Purpose of Historical Research

The purpose of historical research is to study the past in order to gain a better understanding of the present and to inform future decision-making. Some specific purposes of historical research include:

• To understand the origins of current events, practices, and institutions : Historical research can be used to explore the historical roots of current events, practices, and institutions. By understanding how things developed over time, we can gain a better understanding of the present.
• To develop a more accurate and inclusive understanding of history : Historical research can be used to correct inaccuracies and biases in historical narratives. By exploring different perspectives and sources of information, we can develop a more complete and nuanced understanding of history.
• To inform decision-making: Historical research can be used to inform decision-making in various fields, including education, public policy, business, and law. By understanding the historical context of current issues, we can make more informed decisions about how to address them.
• To preserve cultural heritage : Historical research can be used to document and preserve cultural heritage, including traditions, practices, and artifacts. By understanding the historical significance of these cultural elements, we can work to preserve them for future generations.
• To stimulate curiosity and critical thinking: Historical research can be used to stimulate curiosity and critical thinking about the past. By exploring different historical perspectives and interpretations, we can develop a more critical and reflective approach to understanding history and its relevance to the present.

When to use Historical Research

Historical research can be useful in a variety of contexts. Here are some examples of when historical research might be particularly appropriate:

• When examining the historical roots of current events: Historical research can be used to explore the historical roots of current events, practices, and institutions. By understanding how things developed over time, we can gain a better understanding of the present.
• When examining the historical context of a particular topic : Historical research can be used to explore the historical context of a particular topic, such as a social issue, political debate, or scientific development. By understanding the historical context, we can gain a more nuanced understanding of the topic and its significance.
• When exploring the evolution of a particular field or discipline : Historical research can be used to explore the evolution of a particular field or discipline, such as medicine, law, or art. By understanding the historical development of the field, we can gain a better understanding of its current state and future directions.
• When examining the impact of past events on current society : Historical research can be used to examine the impact of past events (such as wars, revolutions, or social movements) on current society. By understanding the historical context and impact of these events, we can gain insights into current social and political issues.
• When studying the cultural heritage of a particular community or group : Historical research can be used to document and preserve the cultural heritage of a particular community or group. By understanding the historical significance of cultural practices, traditions, and artifacts, we can work to preserve them for future generations.

Characteristics of Historical Research

The following are some characteristics of historical research:

• Focus on the past : Historical research focuses on events, people, and phenomena of the past. It seeks to understand how things developed over time and how they relate to current events.
• Reliance on primary sources: Historical research relies on primary sources such as letters, diaries, newspapers, government documents, and other artifacts from the period being studied. These sources provide firsthand accounts of events and can help researchers gain a more accurate understanding of the past.
• Interpretation of data : Historical research involves interpretation of data from primary sources. Researchers analyze and interpret data to draw conclusions about the past.
• Use of multiple sources: Historical research often involves using multiple sources of data to gain a more complete understanding of the past. By examining a range of sources, researchers can cross-reference information and validate their findings.
• Importance of context: Historical research emphasizes the importance of context. Researchers analyze the historical context in which events occurred and consider how that context influenced people’s actions and decisions.
• Subjectivity : Historical research is inherently subjective, as researchers interpret data and draw conclusions based on their own perspectives and biases. Researchers must be aware of their own biases and strive for objectivity in their analysis.
• Importance of historical significance: Historical research emphasizes the importance of historical significance. Researchers consider the historical significance of events, people, and phenomena and their impact on the present and future.
• Use of qualitative methods : Historical research often uses qualitative methods such as content analysis, discourse analysis, and narrative analysis to analyze data and draw conclusions about the past.

Advantages of Historical Research

There are several advantages to historical research:

• Provides a deeper understanding of the past : Historical research can provide a more comprehensive understanding of past events and how they have shaped current social, political, and economic conditions. This can help individuals and organizations make informed decisions about the future.
• Helps preserve cultural heritage: Historical research can be used to document and preserve cultural heritage. By studying the history of a particular culture, researchers can gain insights into the cultural practices and beliefs that have shaped that culture over time.
• Provides insights into long-term trends : Historical research can provide insights into long-term trends and patterns. By studying historical data over time, researchers can identify patterns and trends that may be difficult to discern from short-term data.
• Facilitates the development of hypotheses: Historical research can facilitate the development of hypotheses about how past events have influenced current conditions. These hypotheses can be tested using other research methods, such as experiments or surveys.
• Helps identify root causes of social problems : Historical research can help identify the root causes of social problems. By studying the historical context in which these problems developed, researchers can gain a better understanding of how they emerged and what factors may have contributed to their development.
• Provides a source of inspiration: Historical research can provide a source of inspiration for individuals and organizations seeking to address current social, political, and economic challenges. By studying the accomplishments and struggles of past generations, researchers can gain insights into how to address current challenges.

Limitations of Historical Research

Some Limitations of Historical Research are as follows:

• Reliance on incomplete or biased data: Historical research is often limited by the availability and quality of data. Many primary sources have been lost, destroyed, or are inaccessible, making it difficult to get a complete picture of historical events. Additionally, some primary sources may be biased or represent only one perspective on an event.
• Difficulty in generalizing findings: Historical research is often specific to a particular time and place and may not be easily generalized to other contexts. This makes it difficult to draw broad conclusions about human behavior or social phenomena.
• Lack of control over variables : Historical research often lacks control over variables. Researchers cannot manipulate or control historical events, making it difficult to establish cause-and-effect relationships.
• Subjectivity of interpretation : Historical research is often subjective because researchers must interpret data and draw conclusions based on their own biases and perspectives. Different researchers may interpret the same data differently, leading to different conclusions.
• Limited ability to test hypotheses: Historical research is often limited in its ability to test hypotheses. Because the events being studied have already occurred, researchers cannot manipulate variables or conduct experiments to test their hypotheses.
• Lack of objectivity: Historical research is often subjective, and researchers must be aware of their own biases and strive for objectivity in their analysis. However, it can be difficult to maintain objectivity when studying events that are emotionally charged or controversial.
• Limited generalizability: Historical research is often limited in its generalizability, as the events and conditions being studied may be specific to a particular time and place. This makes it difficult to draw broad conclusions that apply to other contexts or time periods.

About the author

Muhammad Hassan

Researcher, Academic Writer, Web developer

You may also like

Documentary Research – Types, Methods and...

Scientific Research – Types, Purpose and Guide

Original Research – Definition, Examples, Guide

Humanities Research – Types, Methods and Examples

Artistic Research – Methods, Types and Examples

Handbook for Historians

• Choosing a Paper Topic
• Thesis Statement
• What Sources Can I use?
• Gathering sources
• Find Primary Sources
• Paraphrasing and Quoting Sources
• How to create an Annotated Bibliography
• Formatting Endnotes/Footnotes
• Formatting Bibliographies
• Avoiding Plagiarism

Sample History Papers

Sample title pages, outlines, & citations.

• Research Paper Checklist

These are examples of well written, properly cited history papers.

• Sample Paper with Outline
• Judge and Langdon Book Review/Research Paper - Example 1
• Judge and Langdon Book Review/Research Paper - Example 2
• citation presentation
• HST 302 Paper Example example of a paper for upper division History courses
• HST 302 Title Page
• Outline Example Example of an outline for a first year level history paper.
• << Previous: Avoiding Plagiarism
• Next: Research Paper Checklist >>
• Last Updated: Feb 21, 2024 8:00 PM
• URL: https://resources.library.lemoyne.edu/guides/history/handbook

There is unequivocal evidence that Earth is warming at an unprecedented rate. Human activity is the principal cause.

• While Earth’s climate has changed throughout its history , the current warming is happening at a rate not seen in the past 10,000 years.
• According to the Intergovernmental Panel on Climate Change ( IPCC ), "Since systematic scientific assessments began in the 1970s, the influence of human activity on the warming of the climate system has evolved from theory to established fact." 1
• Scientific information taken from natural sources (such as ice cores, rocks, and tree rings) and from modern equipment (like satellites and instruments) all show the signs of a changing climate.
• From global temperature rise to melting ice sheets, the evidence of a warming planet abounds.

The rate of change since the mid-20th century is unprecedented over millennia.

Earth's climate has changed throughout history. Just in the last 800,000 years, there have been eight cycles of ice ages and warmer periods, with the end of the last ice age about 11,700 years ago marking the beginning of the modern climate era — and of human civilization. Most of these climate changes are attributed to very small variations in Earth’s orbit that change the amount of solar energy our planet receives.

The current warming trend is different because it is clearly the result of human activities since the mid-1800s, and is proceeding at a rate not seen over many recent millennia. 1 It is undeniable that human activities have produced the atmospheric gases that have trapped more of the Sun’s energy in the Earth system. This extra energy has warmed the atmosphere, ocean, and land, and widespread and rapid changes in the atmosphere, ocean, cryosphere, and biosphere have occurred.

Earth-orbiting satellites and new technologies have helped scientists see the big picture, collecting many different types of information about our planet and its climate all over the world. These data, collected over many years, reveal the signs and patterns of a changing climate.

Scientists demonstrated the heat-trapping nature of carbon dioxide and other gases in the mid-19th century. 2 Many of the science instruments NASA uses to study our climate focus on how these gases affect the movement of infrared radiation through the atmosphere. From the measured impacts of increases in these gases, there is no question that increased greenhouse gas levels warm Earth in response.

Scientific evidence for warming of the climate system is unequivocal.

Intergovernmental Panel on Climate Change

Ice cores drawn from Greenland, Antarctica, and tropical mountain glaciers show that Earth’s climate responds to changes in greenhouse gas levels. Ancient evidence can also be found in tree rings, ocean sediments, coral reefs, and layers of sedimentary rocks. This ancient, or paleoclimate, evidence reveals that current warming is occurring roughly 10 times faster than the average rate of warming after an ice age. Carbon dioxide from human activities is increasing about 250 times faster than it did from natural sources after the last Ice Age. 3

The Evidence for Rapid Climate Change Is Compelling:

Global Temperature Is Rising

The planet's average surface temperature has risen about 2 degrees Fahrenheit (1 degrees Celsius) since the late 19th century, a change driven largely by increased carbon dioxide emissions into the atmosphere and other human activities. 4 Most of the warming occurred in the past 40 years, with the seven most recent years being the warmest. The years 2016 and 2020 are tied for the warmest year on record. 5 Image credit: Ashwin Kumar, Creative Commons Attribution-Share Alike 2.0 Generic.

The Ocean Is Getting Warmer

The ocean has absorbed much of this increased heat, with the top 100 meters (about 328 feet) of ocean showing warming of 0.67 degrees Fahrenheit (0.33 degrees Celsius) since 1969. 6 Earth stores 90% of the extra energy in the ocean. Image credit: Kelsey Roberts/USGS

The Ice Sheets Are Shrinking

The Greenland and Antarctic ice sheets have decreased in mass. Data from NASA's Gravity Recovery and Climate Experiment show Greenland lost an average of 279 billion tons of ice per year between 1993 and 2019, while Antarctica lost about 148 billion tons of ice per year. 7 Image: The Antarctic Peninsula, Credit: NASA

Glaciers Are Retreating

Glaciers are retreating almost everywhere around the world — including in the Alps, Himalayas, Andes, Rockies, Alaska, and Africa. 8 Image: Miles Glacier, Alaska Image credit: NASA

Snow Cover Is Decreasing

Satellite observations reveal that the amount of spring snow cover in the Northern Hemisphere has decreased over the past five decades and the snow is melting earlier. 9 Image credit: NASA/JPL-Caltech

Sea Level Is Rising

Global sea level rose about 8 inches (20 centimeters) in the last century. The rate in the last two decades, however, is nearly double that of the last century and accelerating slightly every year. 10 Image credit: U.S. Army Corps of Engineers Norfolk District

Arctic Sea Ice Is Declining

Both the extent and thickness of Arctic sea ice has declined rapidly over the last several decades. 11 Credit: NASA's Scientific Visualization Studio

Extreme Events Are Increasing in Frequency

The number of record high temperature events in the United States has been increasing, while the number of record low temperature events has been decreasing, since 1950. The U.S. has also witnessed increasing numbers of intense rainfall events. 12 Image credit: Régine Fabri,  CC BY-SA 4.0 , via Wikimedia Commons

Ocean Acidification Is Increasing

Since the beginning of the Industrial Revolution, the acidity of surface ocean waters has increased by about 30%. 13 , 14 This increase is due to humans emitting more carbon dioxide into the atmosphere and hence more being absorbed into the ocean. The ocean has absorbed between 20% and 30% of total anthropogenic carbon dioxide emissions in recent decades (7.2 to 10.8 billion metric tons per year). 1 5 , 16 Image credit: NOAA

1. IPCC Sixth Assessment Report, WGI, Technical Summary . B.D. Santer et.al., “A search for human influences on the thermal structure of the atmosphere.” Nature 382 (04 July 1996): 39-46. https://doi.org/10.1038/382039a0. Gabriele C. Hegerl et al., “Detecting Greenhouse-Gas-Induced Climate Change with an Optimal Fingerprint Method.” Journal of Climate 9 (October 1996): 2281-2306. https://doi.org/10.1175/1520-0442(1996)009<2281:DGGICC>2.0.CO;2. V. Ramaswamy, et al., “Anthropogenic and Natural Influences in the Evolution of Lower Stratospheric Cooling.” Science 311 (24 February 2006): 1138-1141. https://doi.org/10.1126/science.1122587. B.D. Santer et al., “Contributions of Anthropogenic and Natural Forcing to Recent Tropopause Height Changes.” Science 301 (25 July 2003): 479-483. https://doi.org/10.1126/science.1084123. T. Westerhold et al., "An astronomically dated record of Earth’s climate and its predictability over the last 66 million years." Science 369 (11 Sept. 2020): 1383-1387. https://doi.org/10.1126/science.1094123

2. In 1824, Joseph Fourier calculated that an Earth-sized planet, at our distance from the Sun, ought to be much colder. He suggested something in the atmosphere must be acting like an insulating blanket. In 1856, Eunice Foote discovered that blanket, showing that carbon dioxide and water vapor in Earth's atmosphere trap escaping infrared (heat) radiation. In the 1860s, physicist John Tyndall recognized Earth's natural greenhouse effect and suggested that slight changes in the atmospheric composition could bring about climatic variations. In 1896, a seminal paper by Swedish scientist Svante Arrhenius first predicted that changes in atmospheric carbon dioxide levels could substantially alter the surface temperature through the greenhouse effect. In 1938, Guy Callendar connected carbon dioxide increases in Earth’s atmosphere to global warming. In 1941, Milutin Milankovic linked ice ages to Earth’s orbital characteristics. Gilbert Plass formulated the Carbon Dioxide Theory of Climate Change in 1956.

3. IPCC Sixth Assessment Report, WG1, Chapter 2 Vostok ice core data; NOAA Mauna Loa CO2 record O. Gaffney, W. Steffen, "The Anthropocene Equation." The Anthropocene Review 4, issue 1 (April 2017): 53-61. https://doi.org/abs/10.1177/2053019616688022.

4. https://www.ncei.noaa.gov/monitoring https://crudata.uea.ac.uk/cru/data/temperature/ http://data.giss.nasa.gov/gistemp

5. https://www.giss.nasa.gov/research/news/20170118/

6. S. Levitus, J. Antonov, T. Boyer, O Baranova, H. Garcia, R. Locarnini, A. Mishonov, J. Reagan, D. Seidov, E. Yarosh, M. Zweng, " NCEI ocean heat content, temperature anomalies, salinity anomalies, thermosteric sea level anomalies, halosteric sea level anomalies, and total steric sea level anomalies from 1955 to present calculated from in situ oceanographic subsurface profile data (NCEI Accession 0164586), Version 4.4. (2017) NOAA National Centers for Environmental Information. https://www.nodc.noaa.gov/OC5/3M_HEAT_CONTENT/index3.html K. von Schuckmann, L. Cheng, L,. D. Palmer, J. Hansen, C. Tassone, V. Aich, S. Adusumilli, H. Beltrami, H., T. Boyer, F. Cuesta-Valero, D. Desbruyeres, C. Domingues, A. Garcia-Garcia, P. Gentine, J. Gilson, M. Gorfer, L. Haimberger, M. Ishii, M., G. Johnson, R. Killick, B. King, G. Kirchengast, N. Kolodziejczyk, J. Lyman, B. Marzeion, M. Mayer, M. Monier, D. Monselesan, S. Purkey, D. Roemmich, A. Schweiger, S. Seneviratne, A. Shepherd, D. Slater, A. Steiner, F. Straneo, M.L. Timmermans, S. Wijffels. "Heat stored in the Earth system: where does the energy go?" Earth System Science Data 12, Issue 3 (07 September 2020): 2013-2041. https://doi.org/10.5194/essd-12-2013-2020.

7. I. Velicogna, Yara Mohajerani, A. Geruo, F. Landerer, J. Mouginot, B. Noel, E. Rignot, T. Sutterly, M. van den Broeke, M. Wessem, D. Wiese, "Continuity of Ice Sheet Mass Loss in Greenland and Antarctica From the GRACE and GRACE Follow-On Missions." Geophysical Research Letters 47, Issue 8 (28 April 2020): e2020GL087291. https://doi.org/10.1029/2020GL087291.

8. National Snow and Ice Data Center World Glacier Monitoring Service

9. National Snow and Ice Data Center D.A. Robinson, D. K. Hall, and T. L. Mote, "MEaSUREs Northern Hemisphere Terrestrial Snow Cover Extent Daily 25km EASE-Grid 2.0, Version 1 (2017). Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. doi: https://doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0530.001 . http://nsidc.org/cryosphere/sotc/snow_extent.html Rutgers University Global Snow Lab. Data History

10. R.S. Nerem, B.D. Beckley, J. T. Fasullo, B.D. Hamlington, D. Masters, and G.T. Mitchum, "Climate-change–driven accelerated sea-level rise detected in the altimeter era." PNAS 15, no. 9 (12 Feb. 2018): 2022-2025. https://doi.org/10.1073/pnas.1717312115.

11. https://nsidc.org/cryosphere/sotc/sea_ice.html Pan-Arctic Ice Ocean Modeling and Assimilation System (PIOMAS, Zhang and Rothrock, 2003) http://psc.apl.washington.edu/research/projects/arctic-sea-ice-volume-anomaly/ http://psc.apl.uw.edu/research/projects/projections-of-an-ice-diminished-arctic-ocean/

12. USGCRP, 2017: Climate Science Special Report: Fourth National Climate Assessment, Volume I [Wuebbles, D.J., D.W. Fahey, K.A. Hibbard, D.J. Dokken, B.C. Stewart, and T.K. Maycock (eds.)]. U.S. Global Change Research Program, Washington, DC, USA, 470 pp, https://doi.org/10.7930/j0j964j6 .

13. http://www.pmel.noaa.gov/co2/story/What+is+Ocean+Acidification%3F

14. http://www.pmel.noaa.gov/co2/story/Ocean+Acidification

15. C.L. Sabine, et al., “The Oceanic Sink for Anthropogenic CO2.” Science 305 (16 July 2004): 367-371. https://doi.org/10.1126/science.1097403.

16. Special Report on the Ocean and Cryosphere in a Changing Climate , Technical Summary, Chapter TS.5, Changing Ocean, Marine Ecosystems, and Dependent Communities, Section 5.2.2.3. https://www.ipcc.ch/srocc/chapter/technical-summary/

Header image shows clouds imitating mountains as the sun sets after midnight as seen from Denali's backcountry Unit 13 on June 14, 2019. Credit: NPS/Emily Mesner Image credit in list of evidence: Ashwin Kumar, Creative Commons Attribution-Share Alike 2.0 Generic.

Discover More Topics From NASA

Explore Earth Science

Earth Science in Action

Earth Science Data

Facts About Earth

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

• View all journals
• Explore content
• About the journal
• Publish with us
• Sign up for alerts
• Published: 27 March 2024

A global timekeeping problem postponed by global warming

• Duncan Carr Agnew   ORCID: orcid.org/0000-0002-2360-7783 1  

Nature ( 2024 ) Cite this article

4898 Accesses

2811 Altmetric

Metrics details

• Applied physics
• Electrical and electronic engineering
• Information technology

The historical association of time with the rotation of Earth has meant that Coordinated Universal Time (UTC) closely follows this rotation 1 . Because the rotation rate is not constant, UTC contains discontinuities (leap seconds), which complicates its use in computer networks 2 . Since 1972, all UTC discontinuities have required that a leap second be added 3 . Here we show that increased melting of ice in Greenland and Antarctica, measured by satellite gravity 4 , 5 , has decreased the angular velocity of Earth more rapidly than before. Removing this effect from the observed angular velocity shows that since 1972, the angular velocity of the liquid core of Earth has been decreasing at a constant rate that has steadily increased the angular velocity of the rest of the Earth. Extrapolating the trends for the core and other relevant phenomena to predict future Earth orientation shows that UTC as now defined will require a negative discontinuity by 2029. This will pose an unprecedented problem for computer network timing and may require changes in UTC to be made earlier than is planned. If polar ice melting had not recently accelerated, this problem would occur 3 years earlier: global warming is already affecting global timekeeping.

This is a preview of subscription content, access via your institution

Access options

Access Nature and 54 other Nature Portfolio journals

Get Nature+, our best-value online-access subscription

24,99 € / 30 days

cancel any time

Subscribe to this journal

Receive 51 print issues and online access

185,98 € per year

only 3,65 € per issue

Rent or buy this article

Prices vary by article type

Prices may be subject to local taxes which are calculated during checkout

Similar content being viewed by others

Smartphones enabled up to 58 s strong-shaking warning in the M7.8 Türkiye earthquake

Francesco Finazzi, Rémy Bossu & Fabrice Cotton

Disappearing cities on US coasts

Leonard O. Ohenhen, Manoochehr Shirzaei, … Robert J. Nicholls

Climate velocities and species tracking in global mountain regions

Wei-Ping Chan, Jonathan Lenoir, … Sheng-Feng Shen

Data availability

The J 2 data are C20LongTerm.txt, downloaded from https://filedrop.csr.utexas.edu/pub/slr/degree_2/ on 25 October 2023. The Earth rotation data are eopc0420.1962-now, downloaded from https://datacenter.iers.org/products/eop/long-term/c04_20/ on 24 October 2023. The atmospheric angular momentum data are from https://datacenter.iers.org/products/geofluids/atmosphere/aam/GGFC2010/AER/ , downloaded on 1 February 2023. Other parameters are taken from the papers referenced.  Source data are provided with this paper.

Code availability

The code for analysing the residual series, est.noise v.1.2, was downloaded from https://github.com/langbein-usgs on 25 June 2023. The seasonal-adjustment code stl was slightly modified from a version downloaded from https://netlib.org/a/ in June 2008.

McCarthy, D. D. & Seidelmann, P. K. Time: From Earth Rotation to Atomic Physics (Cambridge Univ. Press, 2018).

Levine, J., Tavella, P. & Milton, M. Towards a consensus on a continuous coordinated universal time. Metrologia 60 , 014001 (2023).

Article   ADS   Google Scholar  

Nelson, R. A. et al. The leap second: its history and possible future. Metrologia 38 , 509–529 (2001).

Loomis, B. D., Rachlin, K. E. & Luthcke, S. B. Improved Earth oblateness rate reveals increased ice sheet losses and mass-driven sea level rise. Geophys. Res. Lett. 46 , 6910–6917 (2019).

Cheng, M. & Ries, J. C 20 and C 30 variations from SLR for GRACE/GRACE-FO science applications. J. Geophys. Res. Solid Earth 128 , e2022JB025459 (2023).

Lombardi, M. A., Novick, A. N., Neville-Neil, G. & Cooke, B. Accurate, traceable, and verifiable time synchronization for world financial markets. J. Res. Natl Inst. Stand. Technol. 121 , 436–463 (2016).

Addomine, M. in A General History of Horology (eds Turner, A. et al.) 137–152 (Oxford Univ. Press, 2022).

Glennie, P. & Thrift, N. Shaping the Day: A History of Timekeeping in England and Wales 1300–1800 (Oxford Univ. Press, 2009).

Kinns, R. Visual time signals for mariners between their introduction and 1947: a new perspective. J. Astron. Hist. Herit. 25 , 601–713 (2022).

Ellis, W. Lecture on the Greenwich system of time signals. Horol. J. 7 , 85–91, 97–102, 109–114, 121–124 (1865).

Google Scholar  

Nye, J. & Rooney, D. in A General History of Horology (eds Turner, A. et al.) 495–531 (Oxford Univ. Press, 2022).

Nelson, G. K., Lombardi, M. A. & Okayama, D. T. NIST time and frequency radio stations: Www, WWVH, and WWVB. NIST Special Publication 250-67 (U.S. Department of Commerce, 2005).

Agnew, D. C. Time marks and clock corrections: a century of seismological timekeeping. Seismol. Res. Let. 91 , 1417–1429 (2020).

Article   Google Scholar  

Bullard, E. C. An atomic standard of frequency and time interval: definition of the second of time. Nature 176 , 282 (1955).

Guinot, B. & Arias, E. F. Atomic time-keeping from 1955 to the present. Metrologia 42 , S20–S30 (2005).

Leschiutta, S. The definition of the ‘atomic’ second. Metrologia 42 , S10–S19 (2005).

Munk, W. H. & McDonald, G. The Rotation of the Earth: A Geophysical Discussion (Cambridge Univ. Press, 1960).

Ray, R. D. & Erofeeva, S. Y. Long-period tidal variations in the length of day. J. Geophys. Res. 119 , 1498–1509 (2014).

Gross, R. S. in Treatise on Geophysics: Geodesy (ed. Herring, T. A.) 215–261 (Elsevier, 2015).

Haigh, I. D. et al. The tides they are a-changin’: a comprehensive review of past and future nonastronomical changes in tides, their driving mechanisms, and future implications. Rev. Geophys. 58 , e2018RG000636 (2020).

Williams, J. G. & Boggs, D. H. Secular tidal changes in lunar orbit and Earth rotation. Celest. Mech. Dyn. Astron. 126 , 89–129 (2016).

Article   ADS   MathSciNet   Google Scholar  

Whitehouse, P. L. Glacial isostatic adjustment modelling: historical perspectives, recent advances, and future directions. Earth Surf. Dynam. 6 , 401–429 (2018).

Peltier, W. R., Wu, P. P.-C., Argus, D. F., Li, T. & Velay-Vitow, J. Glacial isostatic adjustment: physical models and observational constraints. Rep. Prog. Phys. 85 , 096801 (2022).

Mitrovica, J. et al. Reconciling past changes in Earth’s rotation with 20th century global sea-level rise: Resolving Munk’s enigma. Sci. Adv. 1 , e1500679 (2015).

Article   ADS   PubMed   PubMed Central   Google Scholar  

Kim, A. J. et al. Ice age effects on the satellite-derived \({\dot{J}}_{2}\) datum: mapping the sensitivity to 3D variations in mantle viscosity. Earth Planet. Sci. Lett. 581 , 117372 (2022).

Article   CAS   Google Scholar  

Seago, J. H. in Requirements for UTC and Civil Timekeeping on Earth (eds Seago, J. H. et al.) 107–125 (Univelt, American Astronautical Society, 2013).

Cheng, M., Tapley, B. & Ries, J. Deceleration in the Earth’s oblateness. J. Geophys. Res. Solid Earth 118 , 740–747 (2013).

Lau, H. C. P. et al. Inferences of mantle viscosity based on ice age data sets: Radial structure. J. Geophys. Res. Solid Earth 121 , 6991–7012 (2016).

Mitrovica, J. X. & Peltier, W. R. Present-day secular variations in the zonal harmonics of Earth’s geopotential. J. Geophys. Res. Solid Earth 98 , 4509–4526 (1993).

Cox, C. M. & Chao, B. F. Detection of a large-scale mass redistribution in the terrestrial system since 1998. Science 297 , 831–833 (2002).

Article   ADS   CAS   PubMed   Google Scholar  

Roy, K. & Peltier, W. R. GRACE era secular trends in Earth rotation parameters: a global scale impact of the global warming process? Geophys. Res. Lett. L10306 (2011).

Fox-Kemper, B. et al. in Climate Change 2021: The Physical Science Basis. Sixth Assessment Report of the Intergovernmental Panel on Climate Change (eds Masson-Delmotte, V. et al.) 1211–1362 (Cambridge Univ. Press, 2021).

Barnoud, A. et al. Revisiting the global mean ocean mass budget over 2005–2020. Ocean Sci. 19 , 321–334 (2023).

Wilson, C. The Hill-Brown Theory of the Moon’s Motion: Its Coming-to-Be and Short-Lived Ascendancy ( 1877–1984 ) (Springer, 2010).

Kono, M. (ed.) Treatise on Geophysics, Vol. 5: Geomagnetism (series ed. Schubert, G.) (Elsevier, 2015).

Olson, P. (ed.) Treatise on Geophysics, Vol. 8: Core Dynamics (series ed. Schubert, G.) (Elsevier, 2015).

Langbein, J. Methods for rapidly estimating velocity precision from GNSS time series in the presence of temporal correlation: A new method and comparison of existing methods. J. Geophys. Res. Solid Earth 125 , e2019JB019132 (2020).

Constable, C. & Constable, S. A grand spectrum of the geomagnetic field. Phys. Earth Planet. Inter. 344 , 107090 (2023).

Stephenson, F. R., Morrison, L. V. & Hohenkerk, C. Y. Measurement of the Earth’s rotation: 720 BC to AD 2015. Proc. R. Soc. A 472 , 20160404 (2016).

Article   ADS   CAS   PubMed   PubMed Central   Google Scholar  

Huber, P. J. Modeling the length of day and extrapolating the rotation of the Earth. J. Geod. 80 , 283–303 (2006).

Morrison, L. V., Stephenson, F. R., Hohenkerk, C. Y. & Zawilski, M. Addendum 2020 to ‘Measurement of the Earth’s rotation: 720 BC to AD 2015’. Proc. R. Soc. A 477 , 20200776 (2021).

Bell, S. A., Bangert, J. A. & Kaplan, G. H. in The History of Celestial Navigation: Rise of the Royal Observatory and Nautical Almanacs (eds Seidelmann, P. K. & Hohenkerk, C. Y.) 263–311 (Springer, 2020).

Burnicki, M. in Requirements for UTC and Civil Timekeeping on Earth (eds Seago, J. H. et al.) 35–46 (Univelt, American Astronautical Society, 2013).

Seidelmann, P. K. & Seago, J. H. Time scales, their users, and leap seconds. Metrologia 48 , S186–S194 (2011).

Seago, J. H., Seaman, R. L., Seidelmann, P. K. & Allen, S. L. (eds) Requirements for UTC and Civil Timekeeping on Earth (Univelt, American Astronautical Society, 2013).

Birth, K. in Law and Time (eds Benyon-Jones, S. M. & Grabham, E.) 196–211 (Routledge, 2018).

Cleveland, R. B., Cleveland, W. S., McRae, J. E. & Terpenning, I. STL: a seasonal-trend decomposition procedure based on loess. J. Off. Stat. 6 , 3–73 (1990).

Johnson, H. & Agnew, D. C. Monument motion and measurements of crustal velocities. Geophys. Res. Lett. 22 , 2905–2908 (1995).

Download references

Acknowledgements

I thank R. Ray, L. Morrison, A. Borsa, J. Mitrovica and M. King for their comments.

Author information

Authors and affiliations.

Institute of Geophysics and Planetary Physics, Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, USA

Duncan Carr Agnew

You can also search for this author in PubMed   Google Scholar

Corresponding author

Correspondence to Duncan Carr Agnew .

Ethics declarations

Competing interests.

The author declares no competing interests.

Peer review

Peer review information.

Nature thanks Jerry Mitrovica and the other, anonymous, reviewer(s) for their contribution to the peer review of this work.

Additional information

Publisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Source data

Source data fig. 1, source data fig. 2, rights and permissions.

Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

Reprints and permissions

About this article

Cite this article.

Agnew, D.C. A global timekeeping problem postponed by global warming. Nature (2024). https://doi.org/10.1038/s41586-024-07170-0

Download citation

Received : 04 August 2023

Accepted : 06 February 2024

Published : 27 March 2024

DOI : https://doi.org/10.1038/s41586-024-07170-0

Share this article

Anyone you share the following link with will be able to read this content:

Sorry, a shareable link is not currently available for this article.

Provided by the Springer Nature SharedIt content-sharing initiative

By submitting a comment you agree to abide by our Terms and Community Guidelines . If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.

Quick links

• Explore articles by subject
• Guide to authors
• Editorial policies

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Help | Advanced Search

Computer Science > Computer Vision and Pattern Recognition

Title: mm1: methods, analysis & insights from multimodal llm pre-training.

Abstract: In this work, we discuss building performant Multimodal Large Language Models (MLLMs). In particular, we study the importance of various architecture components and data choices. Through careful and comprehensive ablations of the image encoder, the vision language connector, and various pre-training data choices, we identified several crucial design lessons. For example, we demonstrate that for large-scale multimodal pre-training using a careful mix of image-caption, interleaved image-text, and text-only data is crucial for achieving state-of-the-art (SOTA) few-shot results across multiple benchmarks, compared to other published pre-training results. Further, we show that the image encoder together with image resolution and the image token count has substantial impact, while the vision-language connector design is of comparatively negligible importance. By scaling up the presented recipe, we build MM1, a family of multimodal models up to 30B parameters, including both dense models and mixture-of-experts (MoE) variants, that are SOTA in pre-training metrics and achieve competitive performance after supervised fine-tuning on a range of established multimodal benchmarks. Thanks to large-scale pre-training, MM1 enjoys appealing properties such as enhanced in-context learning, and multi-image reasoning, enabling few-shot chain-of-thought prompting.

Submission history

Access paper:.

• Download PDF
• Other Formats

References & Citations

• Google Scholar
• Semantic Scholar

BibTeX formatted citation

Bibliographic and Citation Tools

Code, data and media associated with this article, recommenders and search tools.

• Institution

arXivLabs: experimental projects with community collaborators

arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website.

Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them.

Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs .

• Mobile Site
• Staff Directory
• Advertise with Ars

Filter by topic

• Biz & IT
• Gaming & Culture

Front page layout

image processing —

Playboy image from 1972 gets ban from ieee computer journals, use of "lenna" image in computer image processing research stretches back to the 1970s..

Benj Edwards - Mar 29, 2024 9:16 pm UTC

On Wednesday, the IEEE Computer Society announced to members that, after April 1, it would no longer accept papers that include a frequently used image of a 1972 Playboy model named Lena Forsén. The so-called " Lenna image ," (Forsén added an extra "n" to her name in her Playboy appearance to aid pronunciation) has been used in image processing research since 1973 and has attracted criticism for making some women feel unwelcome in the field.

Further Reading

In an email from the IEEE Computer Society sent to members on Wednesday, Technical & Conference Activities Vice President Terry Benzel wrote , "IEEE's diversity statement and supporting policies such as the IEEE Code of Ethics speak to IEEE's commitment to promoting an including and equitable culture that welcomes all. In alignment with this culture and with respect to the wishes of the subject of the image, Lena Forsén, IEEE will no longer accept submitted papers which include the 'Lena image.'"

An uncropped version of the 512×512-pixel test image originally appeared as the centerfold picture for the December 1972 issue of Playboy Magazine. Usage of the Lenna image in image processing began in June or July 1973 when an assistant professor named Alexander Sawchuck and a graduate student at the University of Southern California Signal and Image Processing Institute scanned a square portion of the centerfold image with a primitive drum scanner, omitting nudity present in the original image. They scanned it for a colleague's conference paper, and after that, others began to use the image as well.

The image's use spread in other papers throughout the 1970s, '80s, and '90s , and it caught Playboy's attention, but the company decided to overlook the copyright violations. In 1997, Playboy helped track down Forsén, who appeared at the 50th Annual Conference of the Society for Imaging Science in Technology, signing autographs for fans. "They must be so tired of me... looking at the same picture for all these years!" she said at the time. VP of new media at Playboy Eileen Kent told Wired , "We decided we should exploit this, because it is a phenomenon."

The image, which features Forsén's face and bare shoulder as she wears a hat with a purple feather, was reportedly ideal for testing image processing systems in the early years of digital image technology due to its high contrast and varied detail. It is also a sexually suggestive photo of an attractive woman, and its use by men in the computer field has garnered criticism over the decades, especially from female scientists and engineers who felt that the image (especially related to its association with the Playboy brand) objectified women and created an academic climate where they did not feel entirely welcome.

Due to some of this criticism, which dates back to at least 1996 , the journal Nature banned the use of the Lena image in paper submissions in 2018.

The comp.compression Usenet newsgroup FAQ document claims that in 1988, a Swedish publication asked Forsén if she minded her image being used in computer science, and she was reportedly pleasantly amused. In a 2019 Wired article , Linda Kinstler wrote that Forsén did not harbor resentment about the image, but she regretted that she wasn't paid better for it originally. "I’m really proud of that picture," she told Kinstler at the time.

Since then, Forsén has apparently changed her mind. In 2019, Creatable and Code Like a Girl created an advertising documentary titled Losing Lena , which was part of a promotional campaign aimed at removing the Lena image from use in tech and the image processing field. In a press release for the campaign and film, Forsén is quoted as saying, "I retired from modelling a long time ago. It’s time I retired from tech, too. We can make a simple change today that creates a lasting change for tomorrow. Let’s commit to losing me."

It seems like that commitment is now being granted. The ban in IEEE publications, which have been historically important journals for computer imaging development, will likely further set a precedent toward removing the Lenna image from common use. In the email, IEEE's Benzel recommended wider sensitivity about the issue, writing, "In order to raise awareness of and increase author compliance with this new policy, program committee members and reviewers should look for inclusion of this image, and if present, should ask authors to replace the Lena image with an alternative."

reader comments

Channel ars technica.

Advertisement

Supported by

Use of Abortion Pills Has Risen Significantly Post Roe, Research Shows

By Pam Belluck

Pam Belluck has been reporting about reproductive health for over a decade.

• Share full article

On the eve of oral arguments in a Supreme Court case that could affect future access to abortion pills, new research shows the fast-growing use of medication abortion nationally and the many ways women have obtained access to the method since Roe v. Wade was overturned in June 2022.

The Details

A study, published on Monday in the medical journal JAMA , found that the number of abortions using pills obtained outside the formal health system soared in the six months after the national right to abortion was overturned. Another report, published last week by the Guttmacher Institute , a research organization that supports abortion rights, found that medication abortions now account for nearly two-thirds of all abortions provided by the country’s formal health system, which includes clinics and telemedicine abortion services.

The JAMA study evaluated data from overseas telemedicine organizations, online vendors and networks of community volunteers that generally obtain pills from outside the United States. Before Roe was overturned, these avenues provided abortion pills to about 1,400 women per month, but in the six months afterward, the average jumped to 5,900 per month, the study reported.

Overall, the study found that while abortions in the formal health care system declined by about 32,000 from July through December 2022, much of that decline was offset by about 26,000 medication abortions from pills provided by sources outside the formal health system.

“We see what we see elsewhere in the world in the U.S. — that when anti-abortion laws go into effect, oftentimes outside of the formal health care setting is where people look, and the locus of care gets shifted,” said Dr. Abigail Aiken, who is an associate professor at the University of Texas at Austin and the lead author of the JAMA study.

The co-authors were a statistics professor at the university; the founder of Aid Access, a Europe-based organization that helped pioneer telemedicine abortion in the United States; and a leader of Plan C, an organization that provides consumers with information about medication abortion. Before publication, the study went through the rigorous peer review process required by a major medical journal.

The telemedicine organizations in the study evaluated prospective patients using written medical questionnaires, issued prescriptions from doctors who were typically in Europe and had pills shipped from pharmacies in India, generally charging about $100. Community networks typically asked for some information about the pregnancy and either delivered or mailed pills with detailed instructions, often for free.

Online vendors, which supplied a small percentage of the pills in the study and charged between $39 and $470, generally did not ask for women’s medical history and shipped the pills with the least detailed instructions. Vendors in the study were vetted by Plan C and found to be providing genuine abortion pills, Dr. Aiken said.

The Guttmacher report, focusing on the formal health care system, included data from clinics and telemedicine abortion services within the United States that provided abortion to patients who lived in or traveled to states with legal abortion between January and December 2023.

It found that pills accounted for 63 percent of those abortions, up from 53 percent in 2020. The total number of abortions in the report was over a million for the first time in more than a decade.

Why This Matters

Overall, the new reports suggest how rapidly the provision of abortion has adjusted amid post-Roe abortion bans in 14 states and tight restrictions in others.

The numbers may be an undercount and do not reflect the most recent shift: shield laws in six states allowing abortion providers to prescribe and mail pills to tens of thousands of women in states with bans without requiring them to travel. Since last summer, for example, Aid Access has stopped shipping medication from overseas and operating outside the formal health system; it is instead mailing pills to states with bans from within the United States with the protection of shield laws.

What’s Next

In the case that will be argued before the Supreme Court on Tuesday, the plaintiffs, who oppose abortion, are suing the Food and Drug Administration, seeking to block or drastically limit the availability of mifepristone, the first pill in the two-drug medication abortion regimen.

The JAMA study suggests that such a ruling could prompt more women to use avenues outside the formal American health care system, such as pills from other countries.

“There’s so many unknowns about what will happen with the decision,” Dr. Aiken said.

She added: “It’s possible that a decision by the Supreme Court in favor of the plaintiffs could have a knock-on effect where more people are looking to access outside the formal health care setting, either because they’re worried that access is going away or they’re having more trouble accessing the medications.”

Pam Belluck is a health and science reporter, covering a range of subjects, including reproductive health, long Covid, brain science, neurological disorders, mental health and genetics. More about Pam Belluck

New ‘Space Oddities’ podcast explores history and culture of solar eclipses

While the April 8 total solar eclipse will be a once-in-a-lifetime sight for many, the Indiana University Indianapolis Arts and Humanities Institute is building excitement using a different sense: sound.

Its 40-minute “Space Oddities” podcast takes listeners on a journey of solar eclipses across human history, from ancient Babylon to the first motion picture film recording of a solar eclipse. The podcast explores five historical objects while discussing the role of eclipses throughout the history of science and culture.

“We are thinking about the eclipse in the context of world history, examining historical objects that have been left behind by different cultures around the world,” said Jason Kelly , director of the IU Indianapolis Arts and Humanities Institute. “We’re engaging with these objects as a way to look at the eclipse as a historical phenomenon and the ways that people have thought about their world in different places and times.”

The podcast is one of several projects being completed through the First-Year Research Immersion Program , which immerses new students in research, scholarship and creative activity on the Indianapolis campus. The IU Indianapolis Arts and Humanities Institute has long supported students, providing them unique opportunities to participate in collaborative, community-engaged research projects that build transferrable skills to help them excel in future careers.

“Space Oddities” builds on the success of another institute-produced podcast called “ Justice and War in American History ,” which was funded by the National Endowment for the Humanities. The podcasts are part of the institute’s broader interest in ways audio recording might help scholars imagine, question, and create humanistic and artistic narratives. In spring 2023, the institute hosted anthropologist, sound artist and filmmaker Gustavo Valdivia, who offered workshops on field recording for faculty, students and community members.

“We are thinking about narrative in ways that are not necessarily visual or textual, such as how soundscapes shape how we think about our world and how we experience our work and tell our stories,” Kelly said. “Podcasts come under this broader umbrella of thinking about how we listen and tell stories with sound. We thought the eclipse was the perfect opportunity to use the skills students have been learning about soundscapes to tell a story about this amazing phenomenon.”

School of Science students Snehvir Kaur and Ramani Satishkumar have played a critical role in the production of “Space Oddities,” researching important eclipse objects, participating in script development and interviewing IU faculty experts for the podcast.

“Participating in the eclipse podcast has been an incredibly enriching experience for me, especially as it ventures beyond my typical area of study,” Kaur said. “Exploring the intersections of science, culture and history through this project has been both enlightening and invigorating. I was drawn to this project because it offers a unique opportunity to engage with diverse perspectives and disciplines, fostering a deeper understanding of the eclipse phenomenon and its significance across various domains.”

Though this type of project is beyond the students’ traditional studies in the sciences, the experience has provided them with an opportunity to learn how to make arguments and construct a story in a way that is accessible to many people — an important skill set that may benefit them in the future.

“Through this experience, I have gained a newfound appreciation for interdisciplinary collaboration and the power of storytelling in conveying complex scientific concepts to broader audiences,” Kaur said. “The podcast has allowed me to expand my horizons, challenge my assumptions and cultivate a more holistic approach to learning.”

For Nathan Schmidt, a postdoctoral fellow leading the project, helping students see beyond the bounds of their major has been incredibly rewarding.

“Having a firm grasp of audio recording and editing can prove useful in so many ways, despite what the students’ future careers may be,” Schmidt said. “We’re not encouraging them to think about themselves solely as a budding neuroscientist and computer scientist, but as a whole person who has meaningful ways to engage with the world that goes beyond the boundaries of their career.”

Kelsey Cook

Filed under:, more stories.

Theater used to build empathy and reduce stigma in health care

IU campuses offering variety of eclipse events to enjoy celestial spectacle

Social media.

• Facebook for IU
• Linkedin for IU
• Twitter for IU
• Instagram for IU
• Youtube for IU

Additional resources

Indiana university.

• About Email at IU
• People Directory
• Non-discrimination Notice
• Email Newsletters & Press Releases