When people think of baseball trailblazers, their minds immediately go to Jackie Robinson. He was the man who broke the color barrier, appearing in 1947 for the Brooklyn Dodgers, and would go on to a Hall of Fame career. His number 42 is retired throughout baseball, and every year MLB holds "Jackie Robinson Day" across the league. But he was far from the only trailblazer. That same year, a twenty-three-year-old Larry Doby appeared in a game...