
In the third century B.C., the Earth was a philosophical concept. One man dared to make it measurable. Eratosthenes of Cyrene, Chief Librarian of the legendary Library of Alexandria, was the ultimate polymath. Called the Pentathlos for his mastery of...
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In the third century B.C., the Earth was a philosophical concept. One man dared to make it measurable. Eratosthenes of Cyrene, Chief Librarian of the legendary Library of Alexandria, was the ultimate polymath. Called the Pentathlos for his mastery of...