Eratosthenes
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Eratosthenes (ca. 276 B.C.–ca. 195 B.C.) was a Greek mathematician and astronomer. He is best known today for his calculation of the circumference of the Earth.
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Eratosthenes (ca. 276 B.C.–ca. 195 B.C.) was a Greek mathematician and astronomer. He is best known today for his calculation of the circumference of the Earth.