In response to my two posts concerning Emacs history, Lars Brinkhoff wrote me with a pointer to a wonderful repository holding the code to not only early Emacs but also such goodies as ZWEI and Zmacs and all the way back to TECO Emacs from 1976.
If you’re an Emacser and the type of person who likes to read and learn from old code—there’s more of us than you think, grasshopper—you should definitely take a look at Brinkhoff’s repository. It’s a great way to waste while away hours with software archaeology.