The major professional American football organization in the world, the NFL is made up of 32 teams split between two conferences: the National Football Conference and the American Football Conference. Each conference is divided into four geographically based four-team divisions. Teams play a 16-game regular season schedule which is divided into divisional games, intra-conference games and inter-conference games. The NFL is considered one of the most popular professional sports organizations in the world. The NFL Championship Game is called the "Super Bowl".
The NFL is the premier league for American football. It started in the late 1910s as a regional league between Midwestern teams and slowly grew throughout the first half of the 20th century as the major outlet for professional football. In 1969, the NFL assimilated the rival American Football League and cemented its status as the sole outlet for professional football in the United States. In terms of television ratings, NFL football is the most watched sport in the U.S.