Avalon Project
Documents in Law, History, and Diplomacy
Europeana
Europe's digital library, museum and archive.
Internet History Sourcebooks Project
Public domain and copy-permitted historical texts, from Fordham University
World Book Primary Sources
Academic World Book features several hundred thousand primary source documents, including treaties, constitutions, diaries and other first person narratives, U.S. Presidential papers, and more.
World Digital Library
Document from around the world by topic, date, place, etc.