Not a team logo, but the logo of the National Football League used from the first season as the NFL, in 1921, until 1929. The league was known as the American Professional Football Association when it organized into a single league and began play in 1920, and became the NFL in 1922. Teams came and went in the early years, but some lasted until today, including the Chicago Staleys, who became the Bears, the Green Bay Packers and the Chicago Cardinals, who currently reside in Arizona.