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1. Claudius Ptolemy

   Linked via "Marinus of Tyre"

   Cartography and the Geographia
   Ptolemy’s influence extended significantly into geography, detailed in his Geographia. This work provided a comprehensive guide to the known world based on mathematical principles, relying heavily on the principles of projection developed earlier by Marinus of Tyre.
   The Geographia is revolutionary because it applied latitude and longitude—a coordinate system—systematically to map construction, a concept derived from advances in spherical geometry.