Earth-21 is one of fifty-one divergent realities that branched from the core New Earth reality during the recreation of the Multiverse shortly following the events of Infinite Crisis.
In this universe, the Cold War ended peacefully in the 1960s as a new age of heroes begins in this era.
- It is one of the alternate realities of the post-Infinite Crisis Multiverse. It is home to the DC: The New Frontier miniseries.
- Referred to by Dan Didio in DC Nation #77.
- No trivia.
- Characters from Earth-21
- Other things related to Earth-21
- Earth-21's Comic Appearances
- Reality Gallery: Earth-21
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