<P> Batman is an ongoing American comic book series featuring the DC Comics hero of the same name . The character first appeared in Detective Comics # 27 ( cover dated May 1939 ) . Batman proved to be so popular that a self - titled ongoing comic book series began publication with a cover date of Spring 1940 . It was first advertised in early April 1940 , one month after the first appearance of his new sidekick , Robin , the Boy Wonder . </P>
<P> Batman is an ongoing American comic book series featuring the DC Comics hero of the same name . The character first appeared in Detective Comics # 27 ( cover dated May 1939 ) . Batman proved to be so popular that a self - titled ongoing comic book series began publication with a cover date of Spring 1940 . It was first advertised in early April 1940 , one month after the first appearance of his new sidekick , Robin , the Boy Wonder . </P>
when did batman first appeared in comic books
when did batman first appeared in comic books
May 1939
May 1939