Jackie Robinson’s Success In Major League Baseball Encouraged White Americans To. Branch rickey, general manager of the brooklyn. Forty years ago this spring, jackie robinson broke through the barrier that kept blacks out of major league baseball.

Jackie robinson's success in major league baseball (mlb) served as a pivotal moment in american sports and society by encouraging many white americans to rethink their. Forty years ago this spring, jackie robinson broke through the barrier that kept blacks out of major league baseball. In 1945, when rickey approached jackie robinson, baseball was being proposed as one of the first areas of american society to integrate.