Information about the availability of old source-code distributions of Tcl
AK: Anybody who has versions of Tcl not found in Tcl's SourceForge release area [we need a hyperlink to a page which explains the SF releases], please notify either me or Jeff Hobbs of this fact, as well as where to find them, to allow us to get them for the SF collection. I now have copied KJN's tarball and hope to have time to put them up soon.
The old Sprite distributions should have a very early Tcl. (Tcl and Tk were originally available by FTP from the hosts sprite.berkeley.edu and barkley.berkeley.edu; these hosts have long been disconnected. John Ousterhout's Sprite network operating system project ended several years ago.)
The oldest version at SourceForge is Tcl 2.1.