Rube Foster was an American baseball player who gained fame as a pitcher, manager, and owner and is known as the “father of Black baseball” after founding the 1920 Negro National League (NNL), the first successful professional league for African American ballplayers. At the age of 18, he had begun playing semiprofessional baseball in Texas for the Waco Yellow Jackets. In 1902, he joined Frank Leland’s Chicago Union Giants and then, left to play in an integrated semiprofessional league in Michigan. He had an impressive career as a player and eventually joined with businessman John Schorling to form the Chicago American Giants. The American Giants, led by Foster as player, manager, and owner, played at South Side Park and became one of the greatest teams in the history of Black baseball, winning Negro league championships in 1914, 1915, and 1917. In Kansas City, Missouri, in 1920, Foster met with seven other owners of African American baseball clubs for the purpose of establishing the NNL. As chief executive of the NNL, he curtailed the excessive trading of players to establish some parity of talent between the clubs. Foster was elected to the Baseball Hall of Fame in 1981.