In Discover Magazine's June issue:
1 The first celluloid roll film was developed in 1887 by Hannibal Goodwin, an Episcopalian minister from Newark, New Jersey.
2 In 1891 Thomas Edison’s company demonstrated the Kinetograph, the first motion picture camera, but never got around to creating a projector for playback.
3 Instead, the company acquired manufacturing rights to a machine called the Vitascope. One of the conditions of the deal was that Edison be credited as the inventor.
See "things" 4-20.