Moses Fleetwood “Fleet” Walker (October 7, 1856 – May 11, 1924) was an American baseball player, inventor, and author. He is credited with being the first African American to play Major League Baseball. Walker played one season as the catcher of the Toledo Blue Stockings, a club in the American Association. He then played in the minor leagues until 1889, when professional baseball erected a color barrier that stood for nearly 60 years. After leaving baseball, Walker became a businessman and advocate of Black nationalism. In 1884 Toledo joined the American Association, which was a Major League at that time in competition with the National League. Walker made his Major League debut on May 1 against the Louisville Eclipse. In his debut, he went hitless and had four errors. In 42 games, Walker had a batting average of .263, which was above the league average. His brother, Weldy Walker, later joined him on the team, playing in six games. The Walker brothers are the first known African Americans to play baseball in the Major Leagues.