The following events occurred on November 21.
- The film adaption of the classic horror novel 'Frankenstein' was released.
- Emmett Brown and Marty McFly returned to this date to make sure Kid Tannen was arrested. While they succeeded in stopping Kid, they also inadvertently started a romantic relationship between Doc's younger self and Edna Strickland, which led to the dystopian future of 1986B.
Behind the scenes
- "Hill Valley Brown-Out" first aired.