The Grandson of Frank Foster claims his Grandfather created BATMAN in 1932 and someone stole the idea. Would not surprise me if Bob Kane stole the idea, he robbed Bill Finger of his credit. http://www.originalbatman.com/batman/ Also the BLACK BAT was created in the 30's. Maybe his creator stole the Bat idea. https://en.wikipedia.org/wiki/Black_Bat Maybe it all a coincidence.