You could call it renaissance. It was a pinnacle of what we learned about hand drawn animation for the past century. Then, a new method entered the arena (CG) w

You could call it renaissance. It was a pinnacle of what we learned about hand drawn animation for the past century. Then, a new method entered the arena (CG) where principles had to be taught all over again, so we lost a bit of time while catching up. A decade or so, you can see CG finally having nice animation now (pixar doesn't count since it spawned 2d principles in 3d, along with PDI). Last 2D animation that advanced 2D animation was Tarzan from Disney.