Claim: Batman was co-created.
Evidence: The character was created by artist Bob Kane and writer Bill Finger , and first appeared in Detective Comics # 27 -LRB- 1939 -RRB-.
Milton `` Bill '' Finger -LRB- February 8 , 1914 -- January 18 , 1974 -RRB- was an American comic strip and comic book writer best known as the co-creator , with Bob Kane , of the DC Comics character Batman , and the co-architect of the series ' development.