Which American invented photographic roll film?

George Eastman (July 12, 1854 – March 14, 1932) was an American entrepreneur who founded the Eastman Kodak Company and popularized the use of roll film, helping to bring photography to the mainstream. Roll film was also the basis for the invention of motion picture film stock in 1888 by the world's first film-makers Eadweard Muybridge and Louis Le Prince, and a few years later by their followers Léon Bouly, William Kennedy Dickson, Thomas Edison, the Lumière Brothers, and Georges Méliès.

In 1884, Eastman patented the first film in roll form to prove practicable; he had been tinkering at home to develop it. In 1888, he perfected the Kodak Black camera, the first camera designed. Eastman was progressive for his era. He promoted Florence McAnaney to be head of the personnel department, one of the first women to hold an executive position in a major U.S. company.