- On August 20, 1920, at a Hupmobile dealership in Canton, Ohio, the National Football League was formalized, originally as the American Professional Football Association, initially consisting only of the Ohio League teams, although some of the teams declined participation.
- September 26, 1920, The first official football game for the new American Professional Football Association happened on this day. The American Professional Football Association was soon to be known as the National Football League.
- December 28, 1920: Halfback Steve Van Buren is born in La Ceiba, Honduras . Van Buren played for the Philadelphia Eagles of the National Football League from 1944–1951, and is a member of the Pro Football Hall of Fame..
- George "The Gipper" Gipp (February 18, 1895 – December 14, 1920) was a college football player who played for the University of Notre Dame.
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