In "Superman" #349 ("The Turnabout Trap!"), Superman returns from an interstellar mission to find that everyone on Earth is of the opposite sex. Among them are Penny White (a female Perry White), Jenny Olsen (a female Jimmy Olsen), Louis Lane (a male Lois Lane), Batwoman (a female Batman, rather than the actual character), Wonder Warrior (a male Wonder Woman; DC Comics could not use the name Wonder Man at the time because Marvel Comics holds the trademark. A later character did use the name Wonder Man, however—see below.), Black Condor (a male Black Canary), Superlad (a male Supergirl), and Superwoman (his female counterpart) herself. Believing he crossed into a parallel universe, Superman flies back to space to find a dimensional portal but is blocked by an invisible barrier. He notices the parallelism fails when he sees Superwoman and Clara Kent (Superwoman's presumed secret identity) are two separate people.