Margo Seltzer taught CS50 for much of the 90s -- at least '95, '97, and '98 and also, I believe, for a couple years prior to that. (She was on leave in 1996, a

Margo Seltzer taught CS50 for much of the 90s -- at least '95, '97, and '98 and also, I believe, for a couple years prior to that. (She was on leave in 1996, and Brian Kernighan taught the course.)