Civ 2 was a brian reynolds design, as was Alpha Centuari (which is one of the best such games ever done), I think Sid Meier had a lot to do with Civ 3, but i'm not sure if he was actually the project lead or not.

I think they've given Civ 4 to other people to develop, sort of like that Activision serries, Call to Power or whatever it was called.

I used to play the first Civilization game on an old Packard Bell 8088 machine. great times.