Earth-Three, or simply Earth-3 or Earth 3, is a “partially-reversed” Earth, where supervillainous counterparts of the mainstream DC superheroes reside. It first appeared in Justice League of America #29, and the concept has been rebooted several times.
The Crime Society of America from 52 Week 52, art breakdowns by Keith Giffen.
Gardner Francis Cooper Fox was an American writer known best for creating numerous comic book characters for DC Comics. He is estimated to have written more than 4,000 comics stories, including 1,500 for DC Comics. Fox was also a science fiction author and wrote many novels and short stories.
Portrait of Gardner Fox by Gil Kane
Fox's novella "The Man the Sun-Gods Made" was the cover story for the Winter 1946 issue of Planet Stories
Fox's novella "The Warlock of Sharrador" was cover-featured on the March 1953 issue of Planet Stories
Crom, the Barbarian in Out of This World Adventures #1, June 1950, art by John Giunta.