1951 was a year in the 20th century.
- Date Unknown: Toby Baines was born.
- Wednesday, January 24: Yakov Smirnoff is born in Odessa, Ukrainian SSR, Soviet Union.
Behind the scenes
- Tuesday, May 8: Deborah Harmon (The Unnamed morning news anchor) is born in Chicago, Illinois.
- Monday, May 14: Robert Zemeckis, co-writer of the Back to the Future series, is born in Chicago, Illinois
- Wednesday, May 25: Bob Gale, other co-writer of the Back to the Future series, is born in University City, Missouri.
- Saturday, July 28: Danny Mann, voice of Einstein in Back to the Future: The Animated Series is born in Tennessee, U.S..
- Back to the Future
- Back to the Future novelization
- The Earth Day Special (Mentioned only)(Non-canonical appearance)
- ↑ The Earth Day Special
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