Internet Modern History Sourcebook
Undoubtedly the most extensive collection of primary sources available online - from Colonial through the 21st century
- Digital Public Library of America: primary source sets
Wide range world history sources from ancient, medieval and modern time periods. The sets use letters, photographs, posters, oral histories, video clips, sheet music, and more.
- Digital State Archives
Access individual state archives. Includes (but not limited to) documents, photographs, videos, oral histories, music, deeds, artifacts, court records, slave emancipation records, newspapers, and military records.
- The Avalon Project
From Yale Law School-documents covering law, history and diplomacy from ancient times through the 21st century.
- OpenTextbooks
Free, digital history textbooks available in several areas such as environmental, local, general US history.
- The American Yawp
"A Massively Collaborative Open U.S. History Textbook" with primary sources organized by chapters.
Additional primary sources may be listed under the specific subject areas
Internet Modern History Sourcebook