On September 1, 1971, the Pittsburgh Pirates Made Baseball History

9.1.71 - BallNine

The Game that Changed Baseball on September 1, 1971

The day the Pirates fielded the first all-Black and Latino lineup

Pittsburgh Pirates - Wikipedia

The day the Pirates fielded the first all-Black and Latino lineup

Pirates Mark 50th Anniversary Of MLB's First All-Minority Lineup

On Sept. 1, 1971, the Pirates made history with baseball's 1st all

Black History Month: Dave Cash, history

While Jackie Robinson's breakthrough in 1947 opened the gates of opportunity for African Americans and other minority players, it was not until 1971 when a team first enjoyed a full and complete level of integration, with half of its twenty-five-man roster comprised of players of African American and Latino descent. That team was the Pittsburgh Pirates, managed by an old-time Irishman.

The Team that Changed Baseball: Roberto Clemente and the 1971 Pittsburgh Pirates [Book]