Reality names were reused several times. See also Earth-20, Earth 20.


Earth-Twenty was a pre-Crisis universe without a Superman, briefly visited by the Superman of Earth One where he became a disk jockey on radio station WMET, having to deal with both Lois Lane and a woman named Liza Landis who suspected his identity as Superman before he returned home to Earth-One.

This universe was presumably destroyed during the Crisis on Infinite Earths event, and then (presumably) retroactively saved from destruction during the Convergence event.


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