The All-American Girls Professional Baseball League was a women's professional baseball league founded by Philip K. Wrigley which existed from 1943 to 1954. Over 600 women played in the league. In 1948, league attendance peaked over 900,000 spectators in attendance. The Rockford Peaches won a league-best four championships while playing in the AAGPBL. For most of the leagues history manager Bill Allington coached different teams and led the league in career wins as a manager. The motion picture, A League of Their Own (1992), told the story of one of the league's teams.