This article is non-canon.

This article covers a subject that has been deemed non-canon by either the author or the Back to the Future licensees, and thus should not be taken as a part of the "real" Back to the Future universe.

1931A was an ABC timeline. It was a version of 1931 where Dr. Emmett Brown, under the pseudonym Carl Sagan, was looking for information about Marty McFly's grandmother.


  • "Carl Sagan" was caught in the Hill Valley speakeasy blast, and was arrested in suspicion for the arson.
  • "Carl Sagan" was killed by Kid Tannen in retaliation of for the arson of his speakeasy, and went down in history as the Hill Valley speakeasy arsonist. Originally, the speakeasy arson was unsolved.


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