The NFL was established a few years later in 1920 in Canton, Ohio. The American Football League (AFL) was founded in 1959 and merged with the NFL in 1970.

The AAFC now joins the American Football League as rival leagues that have been fully embraced as part of the NFL's history. The AFL and NFL merged for the 1970 seasons and all 1960-69 AFL stats ...

He founded his own rival league, the American Football League. In a year’s time, the AFL debuted with eight franchises, including the Boston Patriots, Oakland Raiders, Denver Broncos and Buffalo ...