Sport Trivia
The NFL commenced in 1920 as the American Professional Football Association, adopting its present name 2 years later. During the remainder of the 20th Century the All-American Football Conference, American Football League, World Football League, and United States Football League came and went, either merging or folding. The Professional Football Researchers Association is a non-profit organization dedicated to preserving and, in some cases, reconstructing professional football history.