Archytas (c. 400-350 BC) was the major Pythagorean mathematician specialized in mathematical mechanics. He developed a theory of acoustics and mathematical harmony as well as he solved the problem of doubling the cube by constructing a three-dimensional model. Archytas was also a politician and commander of the city of Tarantum. His philosophical are not clearly known but as a devoted Pythagorean he focused on the importance of numbers in explaining natural and psychical phenomena.