2021 was a year in the 21st century.
Events
- Date unknown: A great trash storm occurred when many people dropped trash from their hovercars. As Emmett Brown traveled back in time to prevent the invention of the hoverboard, which was the catalyst for the invention of the hovercar, it's unlikely the great trash storm occurred in the new timeline.
Behind The Scenes
- September 14 Back to the Future: The Animated Series celebrates its 30th anniversary.
Appearances
- Doc Brown Saves the World (First mentioned)
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