Ponce de León claimed Florida for Spain.
The 17th Amendment was ratified, requiring the direct election of U.S. senators by popular vote rather than by the state legislators.
The Works Progress Administration (WPA) was approved by Congress to help alleviate joblessness during the Great Depression.
The League of Nations assembled for the last time.
Artist Pablo Picasso died.
Henry "Hank" Aaron hit the 715th home run of his career, breaking Babe Ruth's record.
Actor Clint Eastwood was elected mayor of Carmel, California.
Tennis ace Arthur Ashe announced that he had AIDS.