Telehack retro command line museum

From http://telehack.com/telehack.html

"Telehack is a simulation of a sylized arpanet/usenet, circa 1985-1990. It is a full multi-user simulation, including 25,000 hosts and BBS's the early net, thousands of files from the ero, a collection of adventure and IF games, a working BASIC interpreter with a library of programs to run, simulated historical users, and more."

There are about 25,000 hosts, mostly mined from old uucp maps. You can login to the hosts or finger @them and see users logged in who posted from them at the time. Try e.g. finger @sgi.