Celluloid photographic film was patented by Hannibal Goodwin on 13th September 1898. Goodwin, an Episcopal priest, had invented a method for making transparent, flexible roll film from nitrocellulose. The celluloid film was used in Thomas Edisons’ Kinetoscope, an early machine for viewing animation.
FYI, celluloid was patented by John Wesley Hyatt in 1869.
