A well-known American football league known as the National Football League (NFL) has 32 clubs that are split evenly between the National Football Conference (NFC) and the American Football Conference (AFC) (NFC). It is a league of American football played at a very high level of professionalism across the globe. The American Professional Football Association (APFA) was the organization's original name when it was established in 1920; however, it was eventually rebranded as the National Football League (NFL). The NFL's regular season consists of 18 games, the preseason lasts for three weeks, and the playoffs are a single-elimination tournament with 14 teams that culminate in the Super Bowl.