Directed by Eadweard Muybridge and produced by Leland Stanford, this was the very earliest production that led to what we now know of as motion pictures. Muybridge and Stanford conducted an experiment to take 24 successive pictures (i.e. frames) of a running horse, to prove whether or not the four legs were ever completely off the ground. Some reports cite the horse's name as Occident, and others as Sallie Gardner.