On March 6, 1923 Illinois Athletic Club Sets Record
1923: Johnny Weissmuller, who will later gain fame as “Tarzan,” becomes the first swimmer to break five minutes for 440 yards. Weissmuller, representing the Illinois Athletic Club, finishes in 4:57, clipping 11 seconds off his own world record of 5:08.
Splashing alone in the pool in New Haven, Conn., he swims with ease, exerting himself only at the end. The record is the 47th set by Weissmuller. Official representatives of the AAU clock Weissmuller.