Timeline - Beisbol
The Negro Leagues Made Baseball a Global Sport and Kickstarted the Civil Rights Movement - History
Black Men Out: African Americans in Baseball — NOISE
Timeline of Major League Baseball - Wikipedia
Negro league, Overview, History, Players, & Facts
MLB The Show 23 to feature several Negro League greats - ESPN
The Negro Baseball Leagues (1920-1950) •
The Negro Baseball Leagues, 1920-1950 •
Negro Leagues: Measuring the Quality of Competition
Pirates visit Negro Leagues Baseball Museum
Barrier Breakers Timeline - NLBM
Jackie Robinson: A 'great American,' a complicated man