What is Classical animation
Classical animation is the most traditional of all animation techniques. Generally, the animator will creates each frame individually. Beside, the drawings on papers are often precise and well drawn.
The History of Classical animation : Persistence of vision
According to mediacollege, Persistence of vision is a commonly-accepted although somewhat controversial theory which states that the human eye always retains images for a fraction of a second (around 0.04 second).
Flipbook
A series of pictures that vary gradually from one page to the another
Thaumotrope
A small disc held on opposite sides of it’s circumference by a piece of string.
Phenakistiscope
The Phenakistiscope is a disk that turns freely around its own center.
Zoetrope
A zoetrope move many images through a single spot fast enough,
it creates the illusion of a single, animated image.
How To Create a Phenakistoscope (Video)
http://www.howcast.com/videos/148840-How-To-Create-a-Phenakistoscope