Sept. 4, 1972

Mark Spitz adds to his gold collection when he gains his seventh at the Olympics in Munich. The 22-year-old pre-dental student at Indiana University swims the butterfly leg on the United States' 4x100-meter medley team, which sets a world record of 3:48.16.

Spitz is the first athlete to win seven gold medals in a single Olympiad. All seven wins (four individual, three relay) set world records.

After today's victory, Spitz says he's retiring from swimming. "All the way down that last lap of the pool I kept saying to myself, 'Just a few more strokes and it will be over,'" he says. "Then when I reached the wall I just went up and over it instead of swimming to the side of the pool as the other fellows did. I just couldn't wait to get out of the pool."