Jack Roosevelt Robinson (January 31, 1919 – October 24, 1972) was an American professional baseball player who was the first African American to play in Major League Baseball (MLB) in the modern era. Robinson broke the color line when he started at first base for the Brooklyn Dodgers on April 15, 1947. The Dodgers signing Robinson heralded the end of racial segregation in professional baseball, which had relegated black players to the Negro leagues since the 1880s.
Born in Cairo, Georgia, Robinson was raised in Pasadena, California. A four-sport student athlete at Pasadena Junior College and the University of California, Los Angeles, he was better known for football than he was for baseball, becoming a star with the UCLA Bruins football team. Following his college career, Robinson was drafted for service during World War II, but was court-martialed for refusing to sit at the back of a segregated Army bus, eventually being honorably discharged.