Maps from aerial photography

Using an airplane to take pictures of the ground and then translate the images into maps was first reported as being done by the French photographer and balloonist Gaspard-Félix Tournachon, in 1858 over Paris.  Aerial photography 1918 (source National Geo-Spatial) During World War 1, the English (and the Germans) used aerial reconnaissance extensively and during that time, in 1912, Frederick Charles Victor Laws of the No.1 Squadron of the Royal Flying Corps discovered that vertical photos taken with 60% overlap could be used to create a stereoscopic effect when viewed in a stereoscope, thus creating a perception of depth that