American comic book Kane and Bill Finger created Batman, who debuted in "Detective Comics" #27 (1939). The period from the late 1930s through roughly the end of the 1940s is referred to by comic book experts as the Golden Age of comic books. It featured extremely large print-runs, with "Action Comics" and "Captain Marvel" selling over half a million copies a month each; comics provided very popular cheap entertainment during World War II especially among soldiers, but with erratic quality in stories, art, and printing. In the early 1940s over 90 percent of girls and boys from seven to seventeen read comic books.
Modern Age of Comic Books in comic books. This also led to an avalanche of other comic book adaptations which included previously lesser known Vertigo titles, notably "Constantine" (based on the comic book "Hellblazer") and "V for Vendetta". In the mid-1970s, Marvel antiheroes such as the X-Men’s Wolverine, the Punisher, and writer/artist Frank Miller’s darker version of Daredevil challenged the previous model of the superhero as a cheerful humanitarian. Miller also created Elektra, who straddled the conventional boundary between love interest and villain. Two artistically influential DC Comics limited series contributed to the trend: "," also by Frank Miller and "Watchmen" by Alan Moore and