Reality names were reused several times. See also Earth-21.


Following the retirement of the old guard of the Justice Society of America, the nation endured a period of social repression and anti-heroic sentiment amidst the perils of the Cold War. But by the 1960s, a never-assassinated President John F. Kennedy is ready to lead the United States to the stars - a nation protected by the young super-heroes of the Justice League of America.



  • This Earth is based on Darwyn Cooke's DC: The New Frontier, and is the direct continuation of the pre-Flashpoint Earth-21.
  • John Henry was seen joining the champions of the Multiverse at the House of Heroes. It is unknown if this suggests he survived on this Earth, he was pulled from a divergent timeline, or if he was pulled forward from a point in time prior to his death; the appearance of some members of the Legion of Super-Heroes there suggests the latter may be a possibility.[1]
  • Earth 21 is opposite Earth 48 in the structure of the Multiverse.
  • Earth 21 is part of the area in the local Multiverse termed "The Cartoon Rim" with Earths 12, 26, 42, and sometimes 16.


  • No trivia.

See Also

Links and References

DC Map of the Multiverse: Earth 21


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