One of the earliest mentions of Atlantis occurs in Action Comics #17, in a "Zatara the Magician" story [REF].
The city appeared in several DC comics of the 1940s and 1950s in conflicting depictions before a more consistent portrayal began with an "Aquaman" story in Adventure Comics (vol. 1) #260, in a story by writer Robert Bernstein and artist Ramona Fradon, based on the real-world mythology of Atlantis [REF].