Search Revolution Crossroads (https://www.si.edu/revolution-crossroads/search — documentation: https://huggingface.co/RevolutionCrossroads) explores archives of the American Revolution (1770-1810) from several institutions, using keyword search and AI-assisted discovery.

Developed by the Smithsonian (an American institution of some twenty museums and research centers) with the Library of Congress.
An experimental tool that interrogates museum objects, press articles and veterans’ pension files (nearly 170,000 entries recorded).

AI used in the first place to extract text from scans, to identify people, places, organizations, dates, events.
Natural language search and synthesis generated with cited sources with Llama 3.3 70B instruct.

Datasets published as open data on Hugging Face.

Free; unlimited and without an account.