We all think Captain America was the first Marvel hero, but you'll be surprised to know that The Human Torch in 1939 was the first superhero. Our favourite Cap wasn't born until 1941.
The first Marvel Cinematic Universe film was Iron Man in 2008, starring Robert Downey Jr, Jeff Bridges and Gwyneth Paltrow that had a gross earning of $585.2 million.
We see different spellings of our superhero, but according to Stan Lee, it's Spider-Man in order to separate him from Superman who in print could have a similar name.
Of all superheroes we know in Marvel's history, Spider-Man's black suit wasn't an idea that come from Stan Lee, but came from a fan, Randy Schueller. Marvel offered Randy a chance to write the story himself and $220. His story didn't work and ended with Marvel making their own version.
World star Michael Jackson tried to play Professor X in the first X-Men movie and even Spider-Man and this dream almost came true when Stan Lee agreed to the deal. But later Michael Jackson was forced to walk out from the deal after he offered $1 billion for the company, far more than the company was worth at that time.
In Marvel Comics, Hulk, Bruce Banner appeared as a grey-skinned Hulk but was made green after the issues came in printing, the grey tone would come differently in the printing process.