What did George Eastman invent?

George Eastman (1854-1932) invented a practical roll form of photographic film in 1884 , and founded the Eastman Kodak company. He popularized photography with early hand-held box cameras.

His company would create a transparent motion picture film suitable for projection (most roll films were paper backed at that time) in 1889. He also introduced the motion picture standard still in use today... 35mm film with 4 perforations on each side and a 1.33 aspect ratio image area, introduced in 1892.