The Miami Dolphins are a professional American football team based in the Miami metropolitan area. They compete in the National Football League (NFL) as a member club of the league's American Football Conference (AFC) East division. The team was founded in 1966 and joined the American Football League (AFL) before the league merged with the NFL. The Dolphins have a rich history that includes notable players and coaches, such as Don Shula, who led the team to playoff appearances in each of his first five seasons with the team, including the Dolphins’ first trip to the Super Bowl in January 1972. The team is the only one in NFL history to have an undefeated season, winning every game in 1972. The Dolphins have won two league championships, five conference championships, and thirteen division championships.