A bit of BSD pre-history
BSD was around well before 1992.
I remember hearing a couple of comments about when UNIX v6 was installed on the PDP-11 on the fifth floor of Evans Hall at UC Bezerkeley. One was: "If Bell Labs hadn't invented the transistor, the phone company would still be using vacuum tubes." Another was in respect to C "an abomination in the eyes of the Lord".
Luckily (or perhaps unluckily) for the computer world, the group developing what became BSD adopted pretty much the same software license and Pederson did with SPICE, you were pretty much free to do hat you want as long as mention was given to the Regents of the University of California.