1991 was a year in the 20th century.
Behind the scenes
- Back to the Future: The Animated Series debuts on CBS on September 7, 1991.
- The Institute of Future Technology was opened by Emmett Brown.
- During this time, the Brown family lived out on a farm outside Hill Valley and Marty McFly and Jennifer Parker attended Hill Valley College. Clara Clayton Brown was also teaching at Hill Valley Elementary at this time.
- Back to the Future: The Ride opens at Universal Studios Florida.