Some very rich men who could not get teams in the NFL because of the current owners inthat league formed a league led by Al Davis. The teams were put in home towns of the owners and in some cases moved fairly quickly when attendance was not what was expected. The Dallas team moved to Kansas City.
American Football League was created in 1959.
Arena football league or American football league or American Federation of Labor
The American Football League first played games in 1960.
Yes there was an American Football league that operated from 1960 until 1969.
All American Football League was created in 2007.
World League of American Football was created in 1991.
World League of American Football ended in 1992.
American Football League on ABC was created in 1960.
American Professional Football League was created in 2003.
American Football Women's League ended in 2003.
American Football Women's League was created in 2002.
Dixie League - American football - ended in 1947.