Cartography Timeline By bethangeli 6700 BCE map of Catal Hyuk 3000 BCE Babylonian clay tablets 3000 BCE first map of the moon 600 BCE map of Babylonian empire 600 BCE Pythagoras determines earth is a spere 200 BCE Eratosthenes determines circumference of earth, establishes coordinate grid 150 BCE Hipparchus creates early system of latitude based on the sun 150 Ptolemy creates world map with coordinates for 8,00 locations 476 Roman Empire collapses,scientific cartography halts in Europe 830 Al-Khwarizmi produces world map partly based on Ptolemy's work 1030 Al-Biruni develops triangulation 1375 Abraham Cresques produces world map using portolan maps 1569 Gerardus Mercator publishes his first projection for navigation 1730 sextant developed 1763 John Harrison develops accurate clock for determining longitude at sea 1884 International Meridian Conference chooses Greenwich as the prime meridan 1900 GIS and GPS are developed from aerial and satellite imagery
