Batman began as a killer vigilante in 1939 comics
Bob Kane sketched red tights and bat wings; Bill Finger darkened the look with cowl, cape, and gloves. Detective Comics issue 27 hit stands on 30 March 1939—and early scripts let Bruce Wayne's alter ego maim and kill before a boy sidekick softened the brand.
Batman is DC Comics' masked guardian of fictional Gotham City, the nighttime identity of wealthy industrialist Bruce Wayne. Kane and Finger launched him after Superman's boom, drawing pulp cues from Sherlock Holmes and the Shadow. Kane long claimed solo credit, yet Finger pushed the concept from generic hero toward something truly chiropteran. Wayne's name nods to Robert the Bruce and Mad Anthony Wayne. Originally a millionaire, later stories make him a billionaire who swears not to take life—though that rule hardened only after darker debut tales. A solo Batman title arrived in 1940; Detective Comics remains the longest-running U.S. comic book, and by the 1990s Batman was treated as DC's flagship.
Issue 27's first story echoed Theodore Tinsley's Shadow pulp "Partners of Peril," and Commissioner Gordon already appears, framing how police see the vigilante. A copy of that issue later sold for roughly $1.075 million. Finger's two-page origin in issue 33 (November 1939) shows young Bruce watching a mugger murder his parents and vowing lifelong war on crime at their graves. Batman became the cover star with issue 35 (January 1940). Robin debuted in Detective Comics issue 38 (April 1940); sales nearly doubled despite Kane's preference for a loner, spawning a fashion for kid sidekicks. Batman issue 1 introduced the Joker and Catwoman (first called "The Cat"). World's Finest soon paired him with Superman from fall 1940.
Commerce followed icon status: about 460 million comic copies sold worldwide place the series second historically, with licenses from Lego sets to Arkham games. Other characters have worn the cowl, and team books slot him beside Wonder Woman in the Justice League. The path from pulp imitator to corporate emblem runs through Finger's redesign and a deliberate retreat from lethal justice—proof that even bat-eared myth is rewritten panel by panel.
Source: Batman
