"Primary sources are the raw materials of history — original documents and objects which were created at the time under study. They are different from secondary sources, accounts or interpretations of events created by someone without firsthand experience." ~Library of Congress
Find these on the second floor, in the compact shelving. Browse by year in person or search by keyword online.
Multidisciplinary database with scholarly journals and popular periodicals.
Try searching for people's names or search by country with a very small date range.
These websites and databases can lead you to amazing primary sources.
Mostly U.S. based, many government documents make great primary sources.