On April 15,1947,Major League Baseball took one of its Biggest steps,ending 63 years of segregation,Jackie Robison became the first African American to Break the color Barrier when he was signed with Brooklyn Dodgers.

• 1947年4月15日,美国职业棒球大联盟迈出了最大的一步,结束了长达63年的种族隔离政策,杰克·罗宾森签约布鲁克林道奇队,成为棒球联赛首位黑人选手。