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

MLB Stories - Roberto Clemente career timeline

Roberto Clemente Day celebration around MLB

Pittsburgh Pirates - Wikipedia

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]

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

Rays make history by starting MLB's first all-Latino lineup on Roberto Clemente Day

Longtime Pirates' 2B Stennett dies at 72 after battle with cancer, Sports

Roberto Clemente - Wikipedia

The Team That Changed Baseball: Roberto Clemente and the 1971 Pittsburgh Pirates: Markusen, Bruce: 9781594160899: : Books