Best primary-sources tools

Searchable primary and secondary British historical works

Georgia historical collections with separate full-text searching

Primary sources on the history of science

Massachusetts historical sources from many cultural institutions

Search legislation and congressional records

Linked records of London convicts in Britain and Australia

Educational collections of historical source texts

Oregon history and culture with primary-source companions

Searchable transcripts of Darwin's correspondence

A shared search across Mountain West historical collections

Official publications from the US federal government

Historical documents in law and diplomacy