Primary sources are items created contemporaneously to the event or time period you are studying. First hand accounts created after the fact are also considered primary sources. Visit Making Sense of Evidence for strategies for analyzing online primary materials.
Examples include:
Great Depression and New Deal: A Guide to Digital Collections:
The digital collections available from the Library of Congress are rich in primary and secondary source materials from all periods of U.S. history. You will find a broad range of formats in the collections ranging from first-hand accounts (both written and recorded) to documentation of people and events during this period of history. Visual and performing artists responded through folk song, theatrical performances, and visual materials. This section of the guide will assist you in locating relevant collections and individual items using the Library's website.