Superwoman is the name of several fictional characters from DC Comics. Most of them are, like Supergirl, women with powers similar to those of Superman, like flight, invulnerability, and enhanced strength. DC Comics trademarked the name, an ashcan copy (publication produced solely for legal purposes) was created with the title of Superwoman to prevent competitors from using it. The cover was a reproduction of More Fun Comics #73 with the interior being a reprint of the third issue of Action Comics. The first true appearance of Superwoman was in Action Comics #60 (May 1943). Versions Lois Lane The first appearance of "Superwoman" in a DC comic is in a 1943 story in Action Comics #60 by Jerry Siegel and George Roussos, where Lois Lane dreams that she has gained superpowers from a blood transfusion from Superman and launches a career as Superwoman. A 1947 Superman #45 (March–April 1947) comic revisits the theme in a story titled "Lois Lane, Superwoman!" in which a pair of fraudulent magicians cast a "spell" on Lane, making her believe she has superpowers. Circumstances force Superman to play along with the ruse temporarily by using super-speed to invisibly intervene in Lane's adventures to support the illusion. She briefly sports a costume modeled on Superman's before the spell is broken. A story from Action Comics has Lois actually gaining superpowers from one of Lex Luthor's inventions and launching a short-lived career as "Superwoman". Later stories sporadically feature tales in which Lois gains superpowers and functioned as a "Superwoman" of sorts, but all of these are, like the 1951 tale, temporary. The powers always wear off by the end of the story. A typical example of this is "The Turnabout Powers" from Superman Family #207 (May–June 1981) where the Earth-Two Lois Lane gains powers from her husband (the Earth-Two Superman) through the unexpected effect of an exotic extraterrestrial plant Superman brings into their home. The plant's death reverses the effect. Another example is the Batman/Superman: World's Finest mini-series where Mr. Mxyzptlk briefly transforms Lois into a "Superwoman" with costume and powers. At the end of All-Star Superman #2 Lois Lane is presented with a formula called "Exo-Genes" created by Superman that allows her to have his powers for 24 hours, and she becomes Superwoman. During her adventures with her new Kryptonian powers, she is wooed by two superhumans named "Samson" and "Atlas", and she is captured by a