In 1979, a three-issue miniseries titled "World of Krypton" was published, providing a great amount of detail into Krypton's history just before its destruction, along with the life story of Jor-El himself. A three-issue miniseries entitled "The Krypton Chronicles", published in 1981, tells of Superman researching his roots when, as Clark Kent, he was assigned to write an article about Superman's family by an assignment editor impressed with the television miniseries "Roots". To do so, he and Supergirl travel to Kandor, where they learn the history of the El family. In 1985, writer Alan Moore gave a somewhat darker glimpse into the world of Krypton in his story "For the Man Who Has Everything" (in "Superman Annual" #11), the premise being an elaborate dream of Superman's in which Krypton had not exploded and he had grown to adulthood there. Background details are culled from other Krypton stories. This same story was retold in the animated series "Justice League Unlimited" in an episode by the same name and several elements were used in the "Supergirl" series episode "For the Girl Who Has Everything".