The stroke that is mostly used is the Breaststroke.
-The very first events were the freestyle stroke and the breastroke stroke. They swam in the Meditteranian sea.
10th Aug, 1935 - First topless swimsuits.
-Mark Spitz came to the 1972 olympics to win 6 medals. His record of 7 gold medals in a single games was not broken until 2008.
10th Apr, 1981 - Swimming a Womens NCAA sport.