The influence of pulp fiction spread to comic books. Modern-day superheroes were inspired by the early pulp characters. For example, Batman was created in 1939 by Bob Kane and Bill Finger.Batman was heavily influenced by the Shadow. The Shadow was an unusually dark hero, a former criminal turned crime-fighter who retains an insight into the criminal mind. The tagline for the Shadow read ‘Who knows what evil lurks within the hearts of men? Only the Shadow knows.’ This was a major influence on Batman.
Batman is a dark avenger who uses the image of the bat to terrify criminals, whom he describes as ‘a superstitious, cowardly lot’. Batman was much grittier and more urban than any other comic of its time. It’s set in Gotham City and the word ‘Gotham’ actually means a huge, oppressive city. Batman writer Dennis O’Neil said that ‘Batman’s Gotham City is Manhattan below Fourteenth Street at eleven minutes past midnight on the coldest night in November.’
A Brief History of Batman | Telewatcher