Started initially as the American Professional Football Association in 1920, the league changed its name to the National Football League in 1922. 32 football teams from across America make up the NFL, which is split into two conferences (AFC & NFC) which each contain four divisions (East, North, South, West).
Each NFL team plays sixteen regular season games and then the top six teams in each conference compete in the playoffs until the NFC and AFC champions are crowned. The showcase of the season is the Superbowl when those two teams play for the Vince Lombardi trophy.