The following is a list and brief history of American football franchises that at one time played in the National Football League (NFL). Note that the list represents NFL franchises that no longer exist, not franchises/teams that relocated. However, during the 1920s it is hard to tell if some teams changed nicknames from year to year or if each nickname represented a new franchise. It was also not uncommon for two or more teams to have the same nickname during the same season. No NFL franchise has folded since 1952. The Buccaneers, Colts, Cowboys, Giants, Lions, Panthers, and Texans franchises listed on this page are not the current franchises of those names.