The Miami Dolphins are the professional American football team based in the Miami, Florida metropolitan area. They play home games at Dolphin stadium, in the suburb of Miami gardens. They are headquartered at the Miami Dolphins Training Facility in Davie, Florida. The dolphins were founded by Joseph Robbie, began play in the American football league as an expansion team in 1966, and joined the NFL as part of the AFL-NFL merger. The dolphins are the oldests major-league professional sports franchise in the state of Florida. The team made its first Super Bowl appearance following the 1971 season in Super Bowl VI, but also lost to the Dallas Cowboys. In 1972, the Dolphins completed the NFL’s perfect season culminating in a super bowl win, winning all 14 regular season games, two playoff games and Super Bowl VIII becoming the first team appear in three consecutive super bowls, and the second team to win back to back chapmpionships.