“Eratosthenes declares that it is no longer necessary to inquire as to the cause of the overflow of the Nile, since we know definitely that men have come to the sources of the Nile and have observed the rains there.”

—  Eratosthenes

Proclus, Timaeus, Vol. 1, 121.8-11 (Diehl); quoted in Morris R. Cohen and I. E. Drabkin, A Sourcebook in Greek Science (1948), 383.
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ancient Greek scientist -276–-194 BC

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