The Denver Broncos are an American football franchise based in Denver, Colorado. Founded by Bob Howsam on August 14, 1959, the team was one of the founder members of the American Football League (AFL), which began in 1960, before merging with the National Football League (NFL) ahead of the 1970 season, when the Broncos became part of the American Football Conference (AFC) West division; they have been in the same division ever since. As of the end of the 2020 season, Denver has completed 61 seasons (playing in over 970 combined regular season and playoff games), and has appeared in eight Super Bowls; although they lost in each of their first four Super Bowl appearances, they have since won three of them, most recently Super Bowl 50.