The first World Series grand slam came on October 10, 1920 when Elmer Smith of the Indians belted a bases-loaded homer against the Brooklyn Dodgers. In the same game, Indians pitcher Jim Bagby hit the first World Series homer by a pitcher. Cleveland won the game, 8-1.
On June 10, 1921, Babe Ruth of the New York Yankees jacked his 120th career home run while facing Indians pitcher Jim Bagby. With this homer, Ruth became baseball’s all-time career home run leader — a position he would hold until 1974, when Hank Aaron hit his 715th round tripper.