Claim: Mary Marvel predates a character from Marvel Comics.
Evidence: Created by Otto Binder and Marc Swayze , she first appeared in Captain Marvel Adventures # 18 -LRB- cover-dated Dec. 1942 -RRB-.
Created by artist Steve Ditko and writer Stan Lee , the character first appeared in Strange Tales # 110 -LRB- cover-dated July 1963 -RRB-.