On March 15, 1869, the Cincinnati Red Stockings became the baseball’s first professional team when the National Association of Base Ball Players (NABBP) agreed to allow compensated players to participate. Harry Wright assembled a ten-man team, all of whom were given a salary through November. The Red Stockings finished the season with a 57–0 record, marking the only perfect season in professional baseball history.
Harry Wright, 1863 (public domain)
