Marvel Comics is home to such legendary super-heroes as Spider-Man, Hulk, Thor, Captain America, and Iron Man, all of whom have spun box office gold in the 21st century. But Marvel Comics has a secret history hidden in the shadows of these well-known franchises. The Secret History of Marvel Comics digs back to the 1930s when Marvel Comics wasn't just a comic-book producing company. Marvel Comics owner Martin Goodman had tentacles into a...