Gender in speculative fiction
The first known female superhero is writer-artist Fletcher Hanks's minor character Fantomah, an ageless, ancient Egyptian woman in the modern day who could transform into a skull-faced creature with superpowers to fight evil; she debuted in 1940 in Fiction Houses "Jungle Comics".
Wonder Woman
Wonder Woman is a fictional superhero appearing in American comic books published by DC Comics. The character is a founding member of the Justice League. The character first appeared in "All Star Comics" #8 in October 1941 with her first feature in "Sensation Comics" #1, January 1942. The "Wonder Woman" title has been published by DC Comics almost continuously except for a brief hiatus in 1986. In her homeland, the island nation of Themyscira, her official title is Princess Diana of Themyscira, Daughter of Hippolyta. When blending into the society outside of her homeland, she adopts her civilian identity Diana Prince.