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