
1) Astronomer 2) Character of great influence 3) Character of great prominence 4) Figure of great significance 5) Figure of great influence 6) Figure of great prominence 7) Influential character 8) Influential somebody 9) Influential personality 10) Individual of great influence 11) Influential person
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https://www.crosswordclues.com/clue/eratosthenes
[crater] Eratosthenes is a relatively deep lunar impact crater that lies on the boundary between the Mare Imbrium and Sinus Aestuum mare regions. It forms the western terminus of the Montes Apenninus mountain range. The crater has a well-defined circular rim, terraced inner wall, central mountain peaks, an irregular floor, and an outer ramp...
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http://en.wikipedia.org/wiki/Eratosthenes_(crater)
[statesman] Eratosthenes of Athens was one of the Thirty Tyrants elected to rule the city of Athens after the Peloponnesian War (431–404 BC). Having lost the war to the Spartans, the citizens of Athens elected thirty men as oligarchs. The Thirty instituted oppressive and highly exclusionary laws and instituted a political purge against At...
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http://en.wikipedia.org/wiki/Eratosthenes_(statesman)

[
n] - Greek mathematician and astronomer who estimated the circumference of the earth and the distances to the moon and sun (276-194 BC)
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http://www.webdictionary.co.uk/definition.php?query=Eratosthenes

Around 230BC developed a method for finding all prime numbers. See also: Prime Numbers.
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https://www.encyclo.co.uk/local/20687
noun Greek mathematician and astronomer who estimated the circumference of the earth and the distances to the moon and sun (276-194 BC)
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https://www.encyclo.co.uk/local/20974

Greek geographer and mathematician whose map of the ancient world was the first to contain lines of latitude and longitude, and who calculated the Earth's circumference with an error of about 10%. His mathematical achievements include a method for duplicating the cube, and for finding prime numbers (Eratosthenes' sieve). No work of Erat...
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https://www.encyclo.co.uk/local/21221

276?–195? b.c., Greek mathematician and astronomer at Alexandria.
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https://www.infoplease.com/dictionary/eratosthenes
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