The First Professional Football League was the inaugural professional football league in the United States, established in 1920. It aimed to create a structured environment for American football, allowing teams to compete at a higher level and attract more fans. The league featured several teams, including the Akron Pros and Decatur Staleys, and laid the groundwork for future professional leagues. The league lasted until 1922, when it was rebranded as the National Football League (NFL). This transition marked a significant evolution in professional football, leading to the growth and popularity of the sport across the country.