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Helicon of Cyzicus
(4th century BCE)
Obscure ancient Greek astronomer and mathematician who studied under Eudoxus, and who is credited with making an accurate prediction of a solar eclipse.



Works by this author published before January 1, 1924 are in the public domain worldwide because the author died at least 100 years ago. Translations or editions published later may be copyrighted. Posthumous works may be copyrighted based on how long they have been published in certain countries and areas.