The NFL
In 1920, an American football league was formed. It was called the American Professional Football Association. In 1921 it changed its name to the National Football League. In 1960 another league was formed, called the American Football League. In 1970 the National Football League and the American Football League joined together so that the teams from each league could play each other. The league called the National Football League changed its name to the National Football Conference (usually called the NFC) and the league called the American Football League changed its name to the American Football Conference (usually called the AFC). The two conferences together are now called the National Football League.
The Super Bowl
The Super Bowl is a special American football game played every year at the end of the National Football League (NFL) season. The best team from each of the two NFL conferences play for the Vince Lombardi Trophy, which was named after the first coach to win a Super Bowl.