United States Football League (1983-1985)
March 8, 2025
Formed: May 11, 1982 Ceased: August 4, 1986 (Suspended Operations) First Games: March 6, 1983 Last Game: July 14, 1985 Seasons: 3 States: 17 including
Sport: Football
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National Football League (1920-Present)
February 4, 2025
Formed: 1920 (as the American Professional Football Association. Became National Football League in 1922) First Game: October 3, 1920 Current number of teams: 32 History The National
Spring Football League (2000)
September 10, 2023
Formed: March 1, 2000 Folded: May 2000 First Game: April 29, 2000 Last Game: May 6, 2000 Seasons: 1 States: 3 (California, Florida & Texas)
United States Football League (2022-2023)
February 6, 2023
Formed: June 3, 2021 Merged: December 31, 2023 – Merged with XFL to form the United Football League First Game: April 16, 2022 Last Game: July
California Football League (1974-1984)
October 27, 2021
Formed: 1974 Disbanded: Spring 1983 Re-Formed: 1984 Disbanded Again: Postseason 1984 First Game: August 1974 Last Game: Seasons: 9 States: 1 (California) Commissioner: 1974 –