74. 1950s: Maggie Smith
Yep, that’s the same Maggie Smith as who plays Professor McGonagall in the Harry Potter series. The two-time Academy Award winner was in her late teens or early 20s when this photo was taken!
73. 1975: The Original SNL Cast
The first night SNL aired as on NBC on October 11, 1975. The original cast, pictured below from left to right Chevy Chase, Laraine Newman, John Belushi, Gilda Radner, Garrett Morris, Jane Curtain, and Dan Aykroyd.