In 1872, former California Governor Leland Stanford contacted photographer Eadweard Muybrige to help settle a bet. Speculation raged for years over whether all four hooves of a galloping horse were off the ground at once. Stanford believed they did, but the motion was too fast for the human eye to detect. Later that year, Muybridge began experimenting with an assembly of 12 cameras with tripwires that photographed a galloping horse. From the sequence of shots, Muybridge was able to prove that Stanford was correct. His efforts in high motion photography eventually let to the creation of motion video, and Eadward Muybridge is regarded as one of the fathers of the motion picture. Among the hundreds of motion photographs he published, the horse in motion remains the most recognized.