National Football League (NFL)
The National Football League was founded in 1920 as the American Professional Football Association before adopting its current name prior to the 1923 season.
Since its founding, the NFL has outlasted a number of would-be competitors, and it has remained the world’s premier league for American football throughout its history. Those challengers include at least four American Football Leagues (1926, 1936-1937, 1940-1941 and 1960-1969), although the final AFL forced a merger with the NFL in 1970. Ten of the current NFL franchises trace their roots to this version of the AFL.
Additionally, the current Los Angeles Rams franchise was a member of the second AFL in 1936 before receiving an invitation to join the NFL. The NFL’s second-biggest competitor was probably the All-American Football Conference (AAFC) dating back to the years between 1946-1949. The Cleveland Browns and the San Francisco 49ers both were originally members of the AAFC before being absorbed into the NFL.
Other less successful challengers include the World Football League (1974-1975), the United States Football League (1983-1985), the XFL (2001) and the United Football League (2009-2012).
|Buffalo||Bills||HOME||American (AFC)||East||Orchard Park||NY|
|Green Bay||Packers||HOME||National (NFC)||North||Green Bay||WI|
|Kansas City||Chiefs||HOME||American (AFC)||West||Kansas City||MO|
|Los Angeles||Rams||HOME||National (NFC)||West||Los Angeles||CA|
|New England||Patriots||HOME||American (AFC)||East||Foxborough||MA|
|New Orleans||Saints||HOME||National (NFC)||South||New Orleans||LA|
|New York||Giants||HOME||National (NFC)||East||East Rutherford||NJ|
|New York||Jets||HOME||National (NFC)||East||East Rutherford||NJ|
|San Diego||Chargers||HOME||American (AFC)||West||San Diego||CA|
|San Francisco||49ers||HOME||National (NFC)||West||Santa Clara||CA|
|Tampa Bay||Buccaneers||HOME||National (NFC)||South||Tampa||FL|