Yeah, I'm less angry at GNU now--I didn't search as hard, but when I found out 4.3BSD didn't have HISTORY (and neither does 2.11BSD, which is still actively-ish maintained) then I figured it wasn't something classical that GNU dropped, just never imported.  I feel like it existed on SunOS and Solaris but I might be wrong about that?  Was it really FreeBSD that introduced it?

Adam