Football

As soon as 1895 in Pennsylvania although professional football was performed, it was not until 1920 that national organization began, with the synthesis of the American Professional Football Association at Canton, Ohio. Originally consisting of five teams, the organization evolved and in 1922 was renamed the National Football League (NFL). Other college stars soon followed, and the public started to show interest in NFL teams.
In the period immediately following World War II professional football's popularity grew immensely. A new league, the All-America Conference (established 1944), competed with the NFL until the two teams merged (1949)..
Four years after the two leagues were merged into the present NFL, which now includes two conferences (the National Football Conference, or NFC, and the American Football Conference, or AFC) totaling 32 teams. The NFL season comprises 16 regular matches, after which the winners of the three divisions in each conference, professional football along with two "wild card" teams (the teams with the next-best record in each conference) play a four-round playoff culminating in the Super Bowl.