Archytas of Tarentum

Archytas (Greek: Αρχύτας; 428 BC – 347 BC) was an Ancient Greek philosopher, mathematician, astronomer, statesman, and strategist.Archytas was born in Tarentum, Magna Graecia (now Italy) and was the son of Mnesagoras or Histiaeus. He was taught for a while by Philolaus and he was a teacher of mathematics to Eudoxus of Cnidus. He was a scientist of the Pythagorean school and famous for being a good friend of Plato. His and Eudoxus' student was Menaechmus.
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Archytas of Tarentum (flourished 400-365 BC) Greek Pythagorean philosopher, general, statesman, scientist, and mathematician, contemporary of Plato. He was the first to distinguish harmonic progression from arithmetical and geometric progression, is credited with inventing the pulley, and contributed to the study of acoustics, music, and mathematics.