Before Jackie Robinson broke the race barrier in 1947, baseball was divided between the 2 Major Leagues and the Negro League. There was one effort at a league to take on the MLBs National and American leagues in the early 20th century: The Federal League. Competing at this level https://hectorijhhe.sharebyblog.com/28414537/significant-league-baseball-the-leading-10-potential-customers-for-first-basemen