It goes back a bit further than that, to 4.3BSD-Reno https://minnie.tuhs.org/cgi-bin/utree.pl?file=4.3BSD-Reno/share/misc https://minnie.tuhs.org/cgi-bin/utree.

It goes back a bit further than that, to 4.3BSD-Reno https://minnie.tuhs.org/cgi-bin/utree.pl?file=4.3BSD-Reno/share/misc https://minnie.tuhs.org/cgi-bin/utree.pl?file=4.3BSD-Reno/sh... The previous release, 4.3BSD-Tahoe, did not have /usr/share