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Jim Thorpe, the first NFL president, shown here in his Carlisle Indian School uniform
drop out and fail to play through their schedule. Only four teams: Akron, Buffalo, Canton, and Decatur, finished the schedule. Akron claimed the first league champion, with the only undefeated record among the remaining teams.
In 1921, several more teams joined the league, increasing the membership to 22 teams. Among the new additions were the Green Bay Packers, which now has the record for longest use of an unchanged team name. Also in 1921, A. E. Staley, the owner of the Decatur Staleys, sold the team to player-coach George Halas, who went on to become one of the most important figures in the first half century of the NFL. In 1921, Halas moved the team to Chicago, but retained the Staleys nickname. In 1922 the team was renamed the Chicago Bears.
By the mid-1920s, NFL membership had grown to 25 teams, and a rival league known as the American Football League was formed. The rival AFL folded after a single season, but it symbolized a growing interest in the professional game. Several college stars joined the NFL, most notably Red Grange from the University of Illinois, who was taken on a famous barnstorming tour in 1925 by the Chicago Bears.
At the end of the 1932 season, the Chicago Bears and the Portsmouth Spartans were tied with the best regular-season records. To determine the champion, the league voted to hold its first playoff game. Because of cold weather, the game was held indoors at Chicago Stadium, which forced some temporary rule changes. Chicago won, 9–0. The playoff proved so popular that the league
reorganized into two divisions for the 1933 season, with the winners advancing to a scheduled championship game. A number of new rule changes were also instituted: the goal posts were moved forward to the goal line, every play started from between the hash marks, and forward passes could originate from anywhere behind the line of scrimmage (instead of the previous five yards behind). In 1936, the NFL instituted the first ever draft of college players. The first selection was Heisman Trophy winner Jay Berwanger, but he declined to play professionally. Also in that year, another AFL formed, but it also lasted only two seasons.
In 1941, the NFL named its first Commissioner, Elmer Layden. The new office replaced that of President. Layden held the job for five years, before being replaced by Pittsburgh Steelers co-owner