Bill Aspray and I are exploring how fact checking was done between the early 1950s and the mid-1990s using computers and networks, that is to say, before the wide use of the Internet, snopes, Wiki etc. If you are aware of specific examples, or documentation, about this use of computing, please let us know. We are interested in all manner of fact checking, not limiting it to press challenges of statements by politicians, hoaxes, and faulty scientific research.  Thanks for your help.
--