It's got some of the commercial emacsen, but I don't see CCA Emacs (ran on VAX BSD, at MIT in 1984-1985 at least; notable for things like "running a child csh t

It's got some of the commercial emacsen, but I don't see CCA Emacs (ran on VAX BSD, at MIT in 1984-1985 at least; notable for things like "running a child csh to do file globbing" which was almost clever... until you didn't save for an hour and the csh autologout fired, and you discovered you could no longer save anything either. Never got bit by it, just remember being unable to help people with it...) No reason to think it shared code with anything else in the tree, of course.