character: Claudius Ptolemy
topic: Ancient Mapping Techniques
grade: 10
subject: Geography
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character: Eratosthenes
topic: Early Geography and Map-making
grade: 10
subject: Geography
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character: Hipparchus
topic: Coordinate Systems in Ancient Cartography
grade: 10
subject: Geography
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character: Marinus of Tyre
topic: Influence on Modern Mapping Techniques
grade: 10
subject: Geography
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