Bob Kane his first adventure strip, "Rusty and his Pals". In early 1939, DC's success with the seminal superhero Superman in "Action Comics" prompted editors to scramble for more such heroes. In response, Bob Kane conceived "the Bat-Man." Kane said his influences for the character included actor Douglas Fairbanks' film portrayal of the swashbuckler Zorro; Leonardo da Vinci's diagram of the ornithopter, a flying machine with huge bat-like wings; and the 1930 film "The Bat Whispers", based on Mary Rinehart's mystery novel "The Circular Staircase" (1908). Bill Finger joined Bob Kane's nascent studio in 1938. An aspiring writer and part-time shoe salesperson,
Superhero This era saw the debut of first known female superhero, 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. 1940), credited to the pseudonymous "Barclay Flagg". The Invisible Scarlet O'Neil, a non-costumed character who fought crime and wartime saboteurs using the superpower of invisibility created by Russell Stamm, would debut in the eponymous syndicated newspaper comic strip a few months later on June 3, 1940. One superpowered character was portrayed as an antiheroine, a