The Bears–Cardinals rivalry is a National Football League (NFL) rivalry between the Chicago Bears and the Arizona Cardinals. It is the oldest rivalry in the NFL and features the only two teams that remain from the league's inception in 1920. At that time, the Bears were known as the Decatur Staleys, and the Cardinals were the Racine Cardinals. In 1922, both teams moved to Chicago, and the matchup between the teams became known as "The Battle of Chicago" for 38 years, making it the first true rivalry in the league's history. The Bears lead the all-time series 59–28–6.