V7/x86
The first public release of V7/x86, a port of UNIX Version 7 to the x86 (IA-32) based PC is now available. UNIX V7 was the last general distribution (around 1979) to come from the Research group at Bell Labs, the original home of UNIX.
You know you want to.
By ‘you’ I mean ‘I’ and by ‘want to’ I mean ‘will probably spend three hours getting it to work in a virtual machine for no apparent reason’.