American Football League (1940)

The American Football League, also known retrospectively as the AFL III to distinguish it from earlier organizations of that name, was a professional American football league that operated from 1940 to 1941. It was created when three teams, the original Cincinnati Bengals, the Columbus Bullies, and the Milwaukee Chiefs, were lured away from the minor-league American Professional Football Association and joined three new franchises in Boston, Buffalo, and New York City in a new league.

Source: Wikipedia — American Football League (1940) (CC BY-SA 4.0)