American Football Women's League was created in 2002.
American Football League on ABC was created in 1960.
World League of American Football was created in 1991.
American Professional Football League was created in 2003.
Dixie League - American football - was created in 1936.
All American Football League was created in 2007.
Polish American Football League was created in 2006-10.
British Universities American Football League was created in 2007.
Alabama Slammers - Women's American Football League - was created in 2001.
The Super Bowl was created as part of the merger agreement between the National Football League (NFL) and its competitive rival, the American Football League.
Eastern Indoor Football League was created in 2007.
originally there was only one football league in the us but then a new league was created which included new teams like the patriots and the broncos. the original league was called the national football league and the new league was called the American football league. later they were changed to conference instead of league. other wise there is no difference between AFC and NFC