<Table> <Tr> <Th> Character ( s ) </Th> <Th> First Appearance </Th> <Th> Cover Date </Th> <Th> Publisher </Th> <Th> Estimated Value </Th> </Tr> <Tr> <Td> Superman </Td> <Td> Action Comics # 1 </Td> <Td> June 1938 </Td> <Td> DC Comics </Td> <Td> $2,100,000 </Td> </Tr> <Tr> <Td> Batman </Td> <Td> Detective Comics # 27 </Td> <Td> May 1939 </Td> <Td> DC Comics </Td> <Td> $475,000 </Td> </Tr> <Tr> <Td> Sandman ( Wesley Dodds ) </Td> <Td> Adventure Comics # 40 </Td> <Td> July 1939 </Td> <Td> DC Comics </Td> <Td> $60,000 </Td> </Tr> <Tr> <Td> Namor the Sub-Mariner </Td> <Td> Marvel Comics # 1 </Td> <Td> October 1939 </Td> <Td> Timely Comics </Td> <Td> $400,000 </Td> </Tr> <Tr> <Td> Jay Garrick / Flash I ; Hawkman </Td> <Td> Flash Comics # 1 </Td> <Td> January 1940 </Td> <Td> All - American Pubs . </Td> <Td> $95,000 </Td> </Tr> <Tr> <Td> Captain Marvel </Td> <Td> Whiz Comics # 2 </Td> <Td> February 1940 </Td> <Td> Fawcett Comics </Td> <Td> $90,000 </Td> </Tr> <Tr> <Td> Robin </Td> <Td> Detective Comics # 38 </Td> <Td> May 1940 </Td> <Td> DC Comics </Td> <Td> $75,000 </Td> </Tr> <Tr> <Td> The Spectre </Td> <Td> More Fun Comics # 52 </Td> <Td> February 1940 </Td> <Td> DC Comics </Td> <Td> $72,000 </Td> </Tr> <Tr> <Td> Lex Luthor </Td> <Td> Action Comics # 23 </Td> <Td> May 1940 </Td> <Td> DC Comics </Td> <Td> $8,025 </Td> </Tr> <Tr> <Td> The Joker ; Catwoman </Td> <Td> Batman # 1 </Td> <Td> Spring 1940 </Td> <Td> DC Comics </Td> <Td> $160,500 </Td> </Tr> <Tr> <Td> Green Lantern </Td> <Td> All - American Comics # 16 </Td> <Td> July 1940 </Td> <Td> All - American Pubs . </Td> <Td> $131,250 </Td> </Tr> <Tr> <Td> Captain America </Td> <Td> Captain America Comics # 1 </Td> <Td> March 1941 </Td> <Td> Timely Comics </Td> <Td> $125,250 </Td> </Tr> <Tr> <Td> Aquaman ; Green Arrow </Td> <Td> More Fun Comics # 73 </Td> <Td> November 1941 </Td> <Td> DC Comics </Td> <Td> $10,050 </Td> </Tr> <Tr> <Td> Wonder Woman </Td> <Td> All Star Comics # 8 </Td> <Td> December 1941 </Td> <Td> All - American Pubs . </Td> <Td> $60,000 </Td> </Tr> <Tr> <Td> Barry Allen / Flash II </Td> <Td> Showcase # 4 </Td> <Td> October 1956 </Td> <Td> DC Comics </Td> <Td> $48,000 </Td> </Tr> <Tr> <Td> The Justice League of America </Td> <Td> The Brave and the Bold # 28 </Td> <Td> May 1960 </Td> <Td> DC Comics </Td> <Td> $8,127 </Td> </Tr> <Tr> <Td> The Fantastic Four </Td> <Td> The Fantastic Four # 1 </Td> <Td> November 1961 </Td> <Td> Marvel Comics </Td> <Td> $28,896 </Td> </Tr> <Tr> <Td> The Hulk </Td> <Td> The Incredible Hulk # 1 </Td> <Td> May 1962 </Td> <Td> Marvel Comics </Td> <Td> $21,672 </Td> </Tr> <Tr> <Td> Dr. Doom </Td> <Td> The Fantastic Four # 5 </Td> <Td> June 1962 </Td> <Td> Marvel Comics </Td> <Td> $4,154 </Td> </Tr> <Tr> <Td> Spider - Man </Td> <Td> Amazing Fantasy # 15 </Td> <Td> August 1962 </Td> <Td> Marvel Comics </Td> <Td> $45,150 </Td> </Tr> <Tr> <Td> Iron Man </Td> <Td> Tales of Suspense # 39 </Td> <Td> March 1963 </Td> <Td> Marvel Comics </Td> <Td> $3,837 </Td> </Tr> <Tr> <Td> Doctor Strange </Td> <Td> Strange Tales # 110 </Td> <Td> July 1963 </Td> <Td> Marvel Comics </Td> <Td> $3,500 </Td> </Tr> <Tr> <Td> X-Men ; Magneto </Td> <Td> X-Men # 1 </Td> <Td> September 1963 </Td> <Td> Marvel Comics </Td> <Td> $13,545 </Td> </Tr> <Tr> <Td> The Avengers </Td> <Td> The Avengers # 1 </Td> <Td> September 1963 </Td> <Td> Marvel Comics </Td> <Td> $5,148 </Td> </Tr> <Tr> <Td> Daredevil </Td> <Td> Daredevil # 1 </Td> <Td> April 1964 </Td> <Td> Marvel Comics </Td> <Td> $3,160 </Td> </Tr> <Tr> <Td> Teen Titans </Td> <Td> The Brave and the Bold # 54 </Td> <Td> July 1964 </Td> <Td> DC Comics </Td> <Td> $415 </Td> </Tr> <Tr> <Td> The Punisher </Td> <Td> The Amazing Spider - Man # 129 </Td> <Td> February 1974 </Td> <Td> Marvel Comics </Td> <Td> $15,000 </Td> </Tr> <Tr> <Td> Wolverine </Td> <Td> The Incredible Hulk # 181 </Td> <Td> October 1974 </Td> <Td> Marvel Comics </Td> <Td> $1600 </Td> </Tr> <Tr> <Td> Teenage Mutant Ninja Turtles </Td> <Td> Teenage Mutant Ninja Turtles # 1 </Td> <Td> May 1984 </Td> <Td> Mirage Studios </Td> <Td> $2,400 </Td> </Tr> </Table>
who came out first batman or spider man
Batman