Super Bowl
The Super Bowl was created as part of the merger agreement between the National Football League (NFL) and its rival, the American Football League (AFL). After its inception in 1920, the NFL fended off several rival leagues before the AFL began play in 1960. The intense competitive war for players and fans led to serious merger talks between the two leagues in 1966.
[...] In professional American football, the Super Bowl is the championship game of the National Football League (NFL) in the United States. The game and its ancillary festivities constitute Super Bowl Sunday which over the years has become a de facto U.S. national holiday. [...]