From the webpage:
Search America’s historic newspaper pages from 1789-1924 or use the U.S. Newspaper Directory to find information about American newspapers published between 1690-present.
A total of 2,134 newspapers, digitized (images) and searchable. Some 11,520,159 pages for searching and review.
Quite a treasure trove for genealogy types, primary/secondary research papers, people trying to escape the smoothing influence over historical events by history books and others.
Did I mention the site has an API?
Or that it offers access to all of its OCR data in bulk?
It’s not “big data” in the sense of the astronomy community but creating sub-sets for local communities of “their papers” would have a certain cachet.
Enjoy!