09/17/1920 AD joined
The Cardinals become a charter member of the American Professional Football Association (later renamed the National Football League (NFL) in 1922), for a franchise fee of $100.
At the time of the founding of the modern National Football League, the Cardinals were part of a thriving professional football circuit based in the Chicago area. Teams such as the Decatur Staleys, Hammond Pros, Chicago Tigers and the Cardinals had formed an informal loop similar to, and generally on par with, the Ohio and New York circuits that had also emerged as top football centers prior to the league's founding.
The Cardinals and the Chicago Bears (the latter founded as the Decatur Staleys before moving to Chicago in 1921 and being renamed the Chicago Staleys, then in 1922 being renamed the Chicago Bears) are the only charter members of the NFL still in existence, though the Green Bay Packers, which joined the league in 1921, existed prior to the formation of the NFL.
Lattitude: 41.8844° N
Longitude: 87.6324° W
Region: North America
Modern Day United States
