Jackie Robinson was the first African-American person to play in Major League Baseball since 1889. From the 1880s until the 1950s, African-American baseball players were, for the most part, confined to playing baseball in the Negro leagues. Jackie Robinson broke the color barrier on April 15, 1947, playing first base for the Brooklyn Dodgers.

Robinson was 28 years old when he first played in Major League Baseball, and his career lasted for 10 years. Robinson played his entire career for the Brooklyn Dodgers. In 1948, after Robinson's initial break into Major League Baseball, more and more African-American players began to be drafted by teams. Robinson opened the door for baseball superstars such as Larry Doby and Satchel Page. Robinson was given the Rookie of the Year award at the close of his initiatory season in 1947. He won the Most Valuable Player award in 1949. Robinson was inducted into the Major League Baseball Hall of Fame in 1962. Robinson's uniform number, 42, has been retired and is no longer worn by any player on any Major League Baseball team. April 15 has been dubbed "Jackie Robinson Day." On this day, all players and umpires across Major League Baseball wear the number 42 on their jerseys in homage to Robinson.