Eratosthenes
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Eratosthenes [1]
Surnamed the Philologist, a philosopher of Alexandria, born at Cyrene, 276 B.C.; becoming blind and tired of life, he starved himself to death at the age of 80; he ranks high among ancient astronomers; measured the obliquity of the ecliptic, and estimated the size of the earth (276-194 B.C.).
