Side A: League Park opened on May 1, 1891, with the legendary Cy Young pitching for the Cleveland Spiders in their win over the Cincinnati Redlegs. The park remained the home of Cleveland’s professional baseball and football teams until 1946. In 1920 the Cleveland Indians’ Elmer Smith hit the first grand slam home run, and Bill Wamby executed the only unassisted triple play, in World Series history. Babe Ruth hit his 500th home run over the park’s short right field wall in 1929. With the park as home field, the Cleveland Buckeyes won the Negro World Series in 1945.