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.
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The Team that Changed Baseball: Roberto Clemente and the 1971 Pittsburgh Pirates [Book]
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The Pittsburgh Pirates made MLB history 45 years ago with an all-minority lineup
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The best players to wear every jersey number in Pirates history - The Athletic
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Reunion of Pirates' 1971 World Series champions brings back memories
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1971 Pirates were special in many ways, John Sacco
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The Paris Review - Finding a Hall of Fame for Dock Ellis
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Dock Ellis, an All-Star pitcher who reportedly threw a no-hitter on LSD, Local&State
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Dock Ellis Jersey Pittsburgh Pirates Dock Ellis Jerseys - Pirates Store
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Fifty Years After Pitching A No-Hitter, Dock Ellis' Legacy Continues In Baseball