Access millions of pages of primary source collections spanning content from the 15th-21st centuries.
Topically focused collections of historical documents, including the American Civil Liberties Union Papers (1912-1990), Archives Unbound, Archives of Sexuality & Gender, British Library Newspapers, The Economist Historical Archive (1843-2014), 18th Century Collections Online, Indigenous Peoples: North America, 19th Century Collections Online, 19th Century U.S. Newspapers, Political Radicalism & Extremism in the 20th Century, Sabin Americana (1500-1926), and The London Times Digital Archive (1785-1985).
Letters, diaries, memoirs and accounts of early encounters between Native Americans and peoples from Europe, as well as Latin America, Asia, and Africa.
Many useful primary sources will be collected in print or ebook compilations, with several texts or images on a related topic collected in a single volume. The Towns of Italy in the Later Middle Ages is an example of such a source.
Subjects that are useful for finding primary sources in OBIS and Summon:
Summon indexes the full text of some (but not all) of our print sources. Therefore it can be useful to combine a subject search for subject headings associated with primary sources with a keyword search for more specific concepts. The proximity search can help ensure that multiple concepts are addressed in the same text inside a collection.
To find books where the word city and the word food appear within 100 words of each other, you would use the following search in Summon: