Louis Pierre Mouillard (September 30, 1834 – September 20, 1897) was a French artist and innovator who worked on human mechanical flight in the second half of the 19th century. He based much of his work on the investigation of birds in Algeria and Cairo. Around the early 1900s he was considered the father of aviation. Mouillard's most famous work, L'Empire de l'Air, in which he proposed fixed-wing gliders, was published in France in 1881 and soon became a widely recognized classic. It was translated into English by the Smithsonian Institution in their annual report of 1892 and reprinted in 1893 as The Empire Of The Air. Mouillard studied at the School of Fine Arts at Lyon and Paris but settled in Algeria at Mitidja after the death of his father. Here he constructed several gliders before returning to France in 1865. Around this time he managed to glide 138 feet at about 30 feet height. He also described the use of a screw to provide lift and propulsion to a glider in 1890. He was appointed a professor of drawing at the Cairo Polytechnic in 1866 during which time he took a lot of interest in the flight of vultures. He studied the requirements of gliding flight in birds. In 1897 his design was patented in the United States of America by Octave Chanute. His biographer Arthur Henry Couannier posthumously published a book on gliding flight in 1912 titled Le vol sans battement (flight without flapping). He foresaw the use of aluminium as the metal of choice for aircraft and was possibly the first - with the possible exception of British engineer M.P.W. Boulton in 1868 - to introduce control surfaces to the wing. Mouillard realized the importance of wings, gliding and the future of aviation at a time when balloons were considered the only practical way to carry humans and flapping machines had failed. He inspired the work of many others including Octave Chanute and Otto Lilienthal. Mouillard was described by Wilbur Wright as one of the greatest missionaries of the flying cause. Mouillard believed that flight would unify the world, that the empire of the air would be for all humanity to own and that it would eliminate the need for boundaries and armies. He has been termed as a utopian: Mouillard died, largely unrecognized and in poverty, at Cairo in 1897. In February 1912 a statue