The NFL stands for the National Football League, which is the largest and longest enduring professional football league in the United States and Canada. It consists of 32 teams, divided equally between the American Football Conference (AFC) and the National Football Conference (NFC). The NFL was formed in 1920 as the American Professional Football Association (APFA) before renaming itself the National Football League for the 1922 season. The league has grown in popularity over the years, and it is currently the most popular sports league in North America. The NFL season culminates with an annual 14-team playoff tournament leading to the Super Bowl championship game.