In every disney movie, you see phrase A113. What some might not know is that alot of the anamators we know today went to the same animation class. Anamators from Nickalodean, Disney, Pixar, and much more all used the same classroom. This classroom was identified as A113.So the same person who said
We keep moving forward, opening new doors, and doing new things, because we're curious and curiosity keeps leading us down new paths (Said by Walt Disney), also was in the same class as Brad Bird, the person who makes The Simpsons.
In the early days of his new compony, Walt Disney needed a mascot/money maker. At this point in his carrer, Disney was broke. He saw a mouse on his desk and said
Hey, I have an idea that might help us out!.
He looked at that mouse and started to draw that mouse (along with using his immagination a little). Once it was Created, Walt named it Mortimer Mouse. As soon as he got home, he showed the idea to his wife Lillian, but she didn't like the name Mortimer and told Walt to change it to Mickey. From that point on, Walt and Mickey began to do great things.