The Southern California Winter League was the first United States professional baseball league in the 20th Century that allowed competition between white and African-American teams. Starting in 1910, Negro League players would form teams to play winter league baseball in California. Attempting to make extra money during the off season, many white Major League players would play on teams in the California League. The seasons were short, 10 – 20 games and some years there would be only one African-American team. Before the league folded in 1946, white Major League stars such as Bob Feller, Ted Williams, Jimmie Foxx, Dizzy Dean, and Stan Musial played against Negro League stars such as Buck Leonard, Satchel Paige, “Bullet” Joe Rogan, “Cool Papa” Bell, and Hilton Smith; something Major League Baseball would not allow them to do.