https://www.youtube.com/watch?v=JWiWYqvP0BU1968, "Kitty". The first digitally animated cartoon in the world. The cat's silhouette is rendered in ASCII graphics and the movement is achieved through differential equations. Rather than professional animators, the short was created by a bunch of math nerds at the Moscow State University. It may not look like much these days, but it's an important milestone that most people don't know about.
