1897 was a year in the 19th century.
- Day Unknown, September 1: Marty, Jules and Verne Brown traveled back here from 1991. They planned to prevent Pee Wee McFly from losing the game on the next day that prevented the Boston Beaneaters from winning the 1897 National League Pennant Race. Marty briefly filled in for his ancestor and won the game, much to the latter's dread.
- Later that night, Marty told Pee Wee "Get out of town", which he took literally and prepared to do so.
- Day Unknown, September 2: With his ancestor leaving town, Marty filled in again and did well until Doc's baseball glasses and bodysuit were broken. It seemed that the team would lose until Pee Wee returned to play, allowing for victory. Diamond Jim Tannen was arrested after.
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