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Who is credited with inventing the gnomon, which allowed early measurement of latitude?

AHipparchus
BPtolemy
CEratosthenes
DAnaximander
Answer & Solution
Correct answer: D. Anaximander
1. Anaximander is credited with inventing the gnomon. 2. The gnomon was a simple Greek instrument for early latitude measurement. 3. Hipparchus, Ptolemy and Eratosthenes are known for other work. _Source: Wikipedia, Geography, Origin and history_
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