Step 1 : Introduction to the question "Who was Marvel's first superhero?"
...Although characters like Spider-Man, and the Incredible Hulk usually come to mind you think about Marvel Comics, it was actually Namor the Sub-Mariner who was Marvel’s first superhero. Debuting in early 1939, the character was created by writer-artist Bill Everett. Everett said the character's name was inspired by Samuel Taylor Coleridge's poem, "The Rime of the Ancient Mariner". Everett came up with "Namor" by writing down noble-sounding names backwards and thought Roman/Namor looked the best.