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It was New York City on April 15, 1947. Jackie Robinson, an African American, went on the field as second baseman for the Brooklyn Dodgers. People couldn't believe their eyes. He was the first African American player to play on a Major League team. That day, the color line was broken.

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Robinson's uniform number was 42. Baseball players on Major League teams no longer wear the number 42 to honor him. Every year, however, on April 15, every player wears the number that Robinson wore. The day is called "Jackie Robinson Day".

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Thanks to Robinson, the Dodgers won the National League Championship in 1947. The league recognized Robinson's excellence and presented him with the Rookie of the Year Award in the same year. After that season, other teams asked African American players to join them.

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Robinson's effort moved his teammates. When people shouted at Robinson, one of his teammates walked up to Robinson and tapped him on the shoulder. "Do not listen to them. You're doing fine," he said. His support helped Robinson to play harder. Finally, Robinson earned the respect of other players and fans.

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Robinson thought to himself, 'I need to keep calm and focus on baseball. I will try and become a player who people like. Then, next season, there will be more African American players in the league.' Robinson put all his time and energy into baseball. With practice, he became great at batting and base running.

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Robinson faced many difficulties. Although Robinson was a talented player and a gentle person, his teammates did not want to play with him. Every hotel turned the team down because Robinson was on the team. When he was at bat, people in the stands rudely shouted at him.