The second American Football League (AFL II) operated in 1936 and 1937. The brainchild of former New York Giants personnel director Harry Addison March, the AFL operated in direct competition with the more established National Football League (NFL) throughout its existence. While the American media generally ignored its operation (often relegating game coverage to "page filler" status), this second AFL was the first "home" of the Cleveland Rams, which joined the National Football League after one year in the AFL..
While the existence of the second American Football League was relatively brief, its influence in American sports was actually more than realized at that time. It introduced "major league" football to the West Coast, which had a team based in Los Angeles. The AFL was also the first "home league" of the Cleveland Rams, which continue to exist as the Los Angeles Rams today.