Mary Marvel was one of the first spin-offs of a significant man superhero who was a woman.
 This era saw the debut of one of the earliest female superheroes, writer-artist Fletcher Hanks's 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 Fiction House's Jungle Comic #2 (Feb
The ideas of second-wave feminism, which spread through the 1960s into the 1970s, greatly influenced the way comic book companies would depict as well as market their female characters: Wonder Woman was for a time revamped as a mod-dressing martial artist directly inspired by the Emma Peel character from the British television series The Avengers (no relation to the superhero team of the same name), but later reverted to Marston's original concept after the editors of Ms

