1884 was a year in the 19th century.
- Timeline 1:
- Tuesday, March 18: Buford Tannen killed the Creel brothers, except for one, who managed to get away.
- Date Unknown: An editor of the Hill Valley Telegraph was shot by Buford Tannen after he published an unfavorable story about him, forcing the next editor to not publish any material on the gunslinger.
- Date Unknown: Martha Clayton passed away.
- Timeline 2:
- Tuesday, March 18: In the timeline where an elderly Biff Tannen brought a sports almanac from 2015 to 1955 to make himself rich, Doc Brown tricked Biff by sending him to this date in his time travel chamber rather than his requested year of 1996. Buford Tannen mistook Biff for the Creel brother that got away, and killed him with his shotgun.