Suffice it to say that Stan Lee was the Godfather of modern comic books. He had a hand in the creation or proliferation of almost every popular Marvel Comics series since the 1960s, and on into the blockbuster film successes of the 21st Century.  Lee's co-creation credits include the Fantastic Four, the Hulk, Thor, Iron Man, the X-Men, Daredevil, Doctor Strange, and Marvel's most successful character, Spider-Man, all of whom lived in a thoroughly shared universe. He also gathered several of their newly created characters together into the team title The Avengers and would revive characters from the 1940s such as the Sub-Mariner and Captain America. 

He has left an indelible impression on hardcore fans and popular culture. He will be missed, though his legend will clearly live on for decades to come. 'Nuff Said!