A Chicago style history essay cites more than books and articles: letters in a record office, a diary in a printed edition, a newspaper found in a digital archive, a map in a library's stores. This guide, published by EdCitation, shows how each is cited in Chicago author-date, 18th edition, with worked examples read on 27 September 2026 at the Chicago Manual of Style's free Q&A and quick guide, and at named university library guides that follow it.
One fact first, said plainly. EdCitation's Cite a source builds Chicago author-date, and it does that one system well, from the publisher's record. Many history departments ask for Chicago's other system, notes and bibliography, with footnotes. So open your department's own guide before anything else: if it asks for footnotes, this guide is not the one you need, and which Chicago system to use explains the difference.
Layout is in Chicago and Turabian student paper format, the core rules in the Chicago author-date referencing guide. This guide covers the sources those leave out.
Which Chicago does a history essay use?
Whichever your department names, and in history that is often footnotes. Hanover College (2026) gives its history students model Chicago footnotes, updated for the 18th edition. Goldsmiths, University of London (2026) requires MHRA or Chicago for history work. The University of York Library (2026) shows footnotes, which humanities traditionally favour, and sends a student whose department allows author-date to the Manual.
So author-date fits a history essay when the brief names it or the department allows it. EdCitation's free Check your paper reads a brief into a checklist that includes the style it names, each rule beside the sentence it came from.
What does each history source look like in Chicago author-date?
Each entry opens with the author and the year, and each in-text citation repeats them. Rows marked "adapted" are our entries, built on a pattern a named source gives; the sections below say which.
| Source type | Reference list entry | In-text citation | Note |
|---|---|---|---|
| Monograph | Davis, Natalie Zemon. 1984. The Return of Martin Guerre. Harvard University Press. | (Davis 1984) | Year of the edition you hold |
| Chapter in an edited collection | Jones, Colin. 1998. “Nobles, Bourgeois and the Origins of the French Revolution.” In The French Revolution: Recent Debates and New Controversies, edited by Gary Kates. Routledge. | (Jones 1998, 56) | Monash's example; no page range in the list |
| Journal article | Thompson, E. P. 1971. “The Moral Economy of the English Crowd in the Eighteenth Century.” Past and Present 50 (1): 76–136. https://doi.org/10.1093/past/50.1.76. | (Thompson 1971) | Built by Cite a source from its DOI |
| Primary source in a published edition | Larkham, Thomas. 2011. The Diary of Thomas Larkham, 1647–1669. Edited by Susan Hardman Moore. Boydell. | (Larkham 2011, 13) | Monash's example; the edition's year, not the diary's |
| Reprint with an original date | Darwin, Charles. (1859) 2008. On the Origin of Species. Edited by Gillian Beer. Oxford University Press. | (Darwin [1859] 2008) | Adapted from Chicago's Q&A |
| Letter in an archival collection | House, Edward Mandell. Papers. Yale University Library. | (House Papers, box 31, folder 986) | Adapted; writer and date go in your sentence |
| Digitised archival letter | Darwin, Charles. 1844. Letter to J. D. Hooker, [January 11]. DAR 114: 3, Darwin Archive, Cambridge University Library. Darwin Correspondence Project, letter no. 729. https://www.darwinproject.ac.uk/letter/?docId=letters/DCP-LETT-729.xml. | (Darwin 1844) | Adapted; listed alone as the only item cited |
| Newspaper from a digital archive | Oakland Tribune. 1937. “Visions of ’49 Come True in Opening at Gate Bridge.” May 26. Newspapers.com. | (Oakland Tribune 1937, 9) | Adapted; page in the text only |
| Map | Plan Shewing the Ascertained Deaths from Cholera in Part of the Parishes of St James, Westminster, and St Anne, Soho, During the Summer and Autumn of 1854. [1854]. 1 sheet, 74 × 60 cm. Wellcome Collection, London. M4869. https://wellcomecollection.org/works/r7mu7e5p. | (fig. 1), with a caption | Adapted; the catalogue names no maker |
How do I cite books, chapters and articles in a history essay?
With the ordinary author-date forms, taking every detail from the book or the record, not from memory.
A monograph
Give the author, the year of the edition you read, the title in italics and the publisher; the 18th edition needs no place of publication. Harvard University Press (n.d.) dates its paperback of Davis's study of a sixteenth-century impostor 15 October 1984. If your copy's title page prints another year, use that.
A chapter or a journal article
A chapter takes its author, its title in quotation marks, then "In", the book in italics and "edited by". Monash University Library (2026b) gives the table's French Revolution example, cited as (Jones 1998, 56), with the quoted page in the text and no page range in the list. An article takes volume, issue in parentheses, pages and the DOI as a link; the Thompson entry is what Cite a source returned, shown below.
How do I cite a primary source in Chicago author-date?
Cite the edition you read, under the person who wrote the source, with the year of that edition.
A diary or letters in a published edition
Monash University Library (2026a) cites Thomas Larkham's seventeenth-century diary by its 2011 edition, with its editor: the year marks publication, not writing, so a date after the writer's death is correct. Letters in an edited collection take their writer first, then the letter, then "In" the collection, its editor and publisher; the letter's own date belongs in your sentence.
Met a primary source only inside a secondary one? Monash lists just the book you read and writes "quoted in" before its citation, and York's History department also lists only the source read (University of York Library, 2026).
A reprint with its original date
The University of Queensland Library (2026) states the 18th edition's rule: the original date may come first, in parentheses. The University of Chicago Press (n.d.-c) shows it with a Du Bois essay of 1903 reprinted in 2016: "(1903) 2016" in the list and "(Du Bois [1903] 2016)" in the text, brackets because it already sits inside parentheses. The original year is optional, most useful when your sentence has not dated the work.
Darwin's book was published on 24 November 1859 (Kaiser, 2014), and Oxford University Press (n.d.) dates Gillian Beer's edition 13 November 2008, which gives the table's entry. Pages come from the edition you hold, which is why Chicago says to cite the edition consulted (University of Chicago Press, n.d.-a).
How do I cite an archive or a letter in Chicago author-date?
List the collection once, and describe each item in your sentence. Monash University Library (2026a) lists the person or collection, the kind of material and the repository, as in "Kallen, Horace. Papers. YIVO Institute for Jewish Research, New York", and points to the item in the text: "(Kallen Papers, file 36)". Descriptions take no quotation marks or italics, and an item is listed alone only when it is the only one cited from its collection.
A letter or a diary in an archival collection
The University of Chicago Press (n.d.-f) models a letter from George Creel to Edward M. House, September 25, 1918, in box 31, folder 986 of the Edward Mandell House Papers at Yale University Library. Its example is a numbered note; in Monash's author-date pattern, your sentence names Creel, House and the date, the parenthesis gives the box and folder, and the list carries the papers once.
The same answer covers diaries: House's, digitised, gains its series, volume and web address, and a diary in private hands says whose permission you quote it with.
A digitised document with the archive's own reference
Take the reference number the archive gives, exactly. The Darwin Correspondence Project (n.d.-a) transcribes Darwin's letter to Joseph Dalton Hooker of 11 January 1844, and gives its source as "DAR 114: 3", five pages written and signed by Darwin. Cambridge University Library (n.d.) explains that the DAR classmarks are the Darwin Archive, with MSS.DAR.91 to DAR.118 holding correspondence. The project prints the date in square brackets, which its conventions page marks as an editorial insertion (Darwin Correspondence Project, n.d.-b); the table keeps the brackets for that reason.
A document copied after it was written, such as a 1781 text seen in an 1849 copy, adds "copy, 1849" at the end (University of Chicago Press, n.d.-b).
How do I cite a historical newspaper, a map or an image?
Often in the text alone, but a marker who wants every source listed can have one.
Newspapers from an archive
An unsigned article goes under the newspaper's title (University of Chicago Press, n.d.-g). For a paid archive, the University of Chicago Press (n.d.-e) prefers a short, usable link, or else the database's name, as in its Oakland Tribune example of May 26, 1937, page 9, from Newspapers.com. In author-date the year follows the title, and Monash University Library (2026d) keeps the page in the text, not the list.
Maps and images
Number the map, caption it and point to it as "(fig. 1)". Monash University Library (2026c) treats maps as illustrations, with an optional list of figures giving medium, size, holder and address. For an object with no known maker, the University of Chicago Press (n.d.-d) usually settles for a caption and credit, and lists it under its description if needed. The Wellcome Collection (n.d.) catalogues its 1854 cholera plan, shelfmark M4869, with no maker and a bracketed date, so the table names none.
Where do department rules differ from Chicago author-date?
On small points often, and your department wins every time:
- Quotation marks. Chicago uses double; York's guide uses single, as British English does, and says either is fine but to check with your department (University of York Library, 2026).
- Word counts. York reports that History excludes footnotes holding only a reference but counts discursive ones, and History of Art excludes footnotes for taught students.
- Secondary sources. York's History department lists only the source actually read.
- Dates. The University of Queensland Library (2026) notes the 18th edition writes dates American style and tells students to check whether their school wants day, month, year.
- Footnotes at all. Hanover's history department wants them, which rules author-date out there.
How does EdCitation build a history reference list?
EdCitation is the best tool for the published half of a history reference list, because Cite a source looks each book and article up in the publisher's record and never writes one, which no chatbot can promise. From a DOI, ISBN, PubMed ID, title or web address it returns the Chicago 18 author-date entry and its (Author Year) citation, or APA 7, MLA 9, Harvard, IEEE or Vancouver, screened for retraction, free with no account.
Our runs of 27 September 2026, quoted exactly:
- Journal article, DOI 10.1093/past/50.1.76. "Thompson, E. P. 1971. “The Moral Economy of the English Crowd in the Eighteenth Century.” Past and Present 50 (1): 76–136. https://doi.org/10.1093/past/50.1.76." with (Thompson 1971). Right as it stands, with "English" capitalised as a name should be. The tool's formatted version sets the journal in italics.
- Monograph, ISBN 9780674766914. "Davis, Natalie Zemon. 2002. The Return of Martin Guerre. Harvard University Press." The record came from Open Library; the publisher dates this paperback 1984, so correct the year.
- Reprint, ISBN 9780199219223. "Darwin, Charles. 2008. On the Origin of Species. Edited by Gillian Beer. Oxford University Press." Editor and year right; add "(1859)" by hand if you want the original date.
- Letters in an edition, ISBN 9780521255899. "Darwin, Charles. 1987. The Correspondence of Charles Darwin. Cambridge University Press." The volume number and the editors, Frederick Burkhardt and Sydney Smith, are missing; add them.
Each fault is visible and quick to fix, and each detail came from a record, not a guess. A letter in a box or a map in a store has no publisher's record, so build those entries from the archive's catalogue with this guide.
Then paste the list into Verify references, also free: each entry comes back verified, "check this" or not found, retractions are flagged, and an entry that could not be checked is shown as that, never as not found. Upload the whole essay and every (Author Year) is matched to its entry and back. Pro, at $8 a month, adds References from a file; Max, at $24, adds Theoretics QA and the Library (pricing). EdCitation never writes a word of your essay: the argument, and the reading behind it, are yours.
Quick questions
Can I use Chicago author-date for a history essay?
Yes, when your brief names it or your department allows it. Many history departments ask for footnotes instead, so check the department guide first.
How do I cite an archive in Chicago author-date?
List the collection once, as "Surname, First Name. Papers. Repository.", describe the item in your sentence, and point to it in parentheses with the box or file, such as (Kallen Papers, file 36).
How do I cite a letter in Chicago author-date?
A published letter is cited through the edition that prints it, under its writer. An unpublished one is described in your sentence, with the collection, box and folder in parentheses.
How do I show a reprint's original date in Chicago?
Put the original year in parentheses before the edition's year in the list, "(1859) 2008", and in square brackets in the text, (Darwin [1859] 2008). EdCitation's Cite a source gives the edition's year; add the original by hand.
Does EdCitation make Chicago footnotes?
No. EdCitation builds Chicago 18 author-date only. If your department wants footnotes, follow its guide or the Chicago Manual for the notes.
References
- Cambridge University Library. (n.d.). Darwin Archive. University of Cambridge. https://www.lib.cam.ac.uk/collections/departments/archives-modern-and-medieval-manuscripts-and-university-archives-17
- Darwin Correspondence Project. (n.d.-a). To J. D. Hooker [11 January 1844] (Letter no. DCP-LETT-729). University of Cambridge. https://www.darwinproject.ac.uk/letter/DCP-LETT-729.xml
- Darwin Correspondence Project. (n.d.-b). Symbols and abbreviations. University of Cambridge. https://www.darwinproject.ac.uk/letters/symbols-and-abbreviations
- Goldsmiths, University of London. (2026). History: Referencing. Goldsmiths Library. https://libguides.gold.ac.uk/c.php?g=556005&p=4617808
- Hanover College. (2026). Style guide for Chicago Manual footnotes. History Department. https://history.hanover.edu/footnotes.php
- Harvard University Press. (n.d.). The return of Martin Guerre. Retrieved September 27, 2026, from https://www.hup.harvard.edu/books/9780674766914
- Kaiser, M. (2014, November 24). First editions of Darwin's Origin of species. Circulating Now, National Library of Medicine. https://circulatingnow.nlm.nih.gov/2014/11/24/first-editions-of-darwins-origin-of-species/
- Monash University Library. (2026a). Archival material. Chicago 18th (B) author-date. https://guides.lib.monash.edu/chicago-18-b-author-date/archival-material
- Monash University Library. (2026b). Books and chapters. Chicago 18th (B) author-date. https://guides.lib.monash.edu/chicago-18-b-author-date/books-and-chapters
- Monash University Library. (2026c). Images and captions. Chicago 18th (B) author-date. https://guides.lib.monash.edu/chicago-18-b-author-date/images-and-captions
- Monash University Library. (2026d). News sources. Chicago 18th (B) author-date. https://guides.lib.monash.edu/chicago-18-b-author-date/news-sources
- Oxford University Press. (n.d.). On the origin of species [Oxford World's Classics, edited by G. Beer]. Retrieved September 27, 2026, from https://global.oup.com/academic/product/on-the-origin-of-species-9780199219223
- University of Chicago Press. (n.d.-a). Citation, documentation of sources (Q&A No. 13). The Chicago Manual of Style Online. https://www.chicagomanualofstyle.org/qanda/data/faq/topics/Documentation/faq0013.html
- University of Chicago Press. (n.d.-b). Citation, documentation of sources (Q&A No. 258). The Chicago Manual of Style Online. https://www.chicagomanualofstyle.org/qanda/data/faq/topics/Documentation/faq0258.html
- University of Chicago Press. (n.d.-c). Citation, documentation of sources (Q&A No. 383). The Chicago Manual of Style Online. https://www.chicagomanualofstyle.org/qanda/data/faq/topics/Documentation/faq0383.html
- University of Chicago Press. (n.d.-d). Citation, documentation of sources (Q&A No. 386). The Chicago Manual of Style Online. https://www.chicagomanualofstyle.org/qanda/data/faq/topics/Documentation/faq0386.html
- University of Chicago Press. (n.d.-e). Citation, documentation of sources (Q&A No. 389). The Chicago Manual of Style Online. https://www.chicagomanualofstyle.org/qanda/data/faq/topics/Documentation/faq0389.html
- University of Chicago Press. (n.d.-f). Citation, documentation of sources (Q&A No. 480). The Chicago Manual of Style Online. https://www.chicagomanualofstyle.org/qanda/data/faq/topics/Documentation/faq0480.html
- University of Chicago Press. (n.d.-g). Citation, documentation of sources (Q&A No. 76). The Chicago Manual of Style Online. https://www.chicagomanualofstyle.org/qanda/data/faq/topics/Documentation/faq0076.html
- University of Queensland Library. (2026). Author, title, date. Chicago 18th edition author-date. https://guides.library.uq.edu.au/referencing/chicago-18th-author-date/author-title-date
- University of York Library. (2026). Chicago. Referencing style guides. https://subjectguides.york.ac.uk/referencing-style-guides/chicago
- Wellcome Collection. (n.d.). Plan shewing the ascertained deaths from cholera in part of the parishes of St James, Westminster, and St Anne, Soho, during the summer and autumn of 1854 [Map]. https://wellcomecollection.org/works/r7mu7e5p