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| | Reference.com/Encyclopedia/Krypton (planet) |
 | | In the 2004 comic miniseries Superman: Birthright, a new retelling of Superman's origin and early years, Mark Waid depicted a Krypton with elements of the pre- and post-Crisis versions of Krypton, but closer to the pre-Crisis version. |
 | | The first and second versions, appearing in the Golden Age and Silver Age comics, developed gradually over the course of nearly fifty years of Superman adventures in comic books, radio, television, and prose stories, from Superman's debut in 1938 until his origin revision in 1986. |
 | | One Superman story from the 1950s that asked the question, "What if Krypton had not exploded?", depicted life in a setting that epitomized the cliche of the "future" as seen in science fiction stories of the time. |
| www.reference.com /browse/wiki/Planet_Krypton (1807 words) |
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