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Heraclides Ponticus
(385 BCE – 322 BCE/310 BCE)
Also known as Herakleides of Pontus. He was an ancient Greek philosopher and astronomer, lived and died at Heraclea Pontica and is best remembered for proposing that the earth rotates on its axis from west to east once every 24 hours.



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.