The first known use of the term "geographic information system" was by Roger Tomlinson in 1968. It was used in his paper called A Geographic Information System for Regional Planning, and because of this, he is commonly known as the "father of GIS".
The first known application for spatial analysis was in 1832 by a French geographer named Charles Picquet. He represented the 48 districts of Paris by halftone color gradients following the number of deaths incurred by the outbreak of cholera per 1,000 inhabitants.
John Snow was determined to find the source of a cholera outbreak in 1854. He attempted to find the source of the cholera outbreak in London’s Broad Street region by marking points on a map to depict where the cholera ...
