The Mario Franchise is currently the #1 Franchise in the world. It has sold millions of games, accessories, and it even had its own TV show.
Mario has a long and detailed history of how it came to be. Mario was created by Shigeru Miyamoto. He originally called Mario Jumpman but at that time, "Jumpman really couldn't jump."
Shigeru Miyamoto presented his idea to Nintendo and is now the official Nintendo mascot.