© Sierra College Astronomy Department
It was Pythagoras (or his students) who rejected the notion of a flat Earth and embraced the idea of a spherical Earth
His model of the universe had Earth revolving around a “central fire” which could not be seen because it was blocked by a “counter Earth”. The moon and Sun traveled around the central fire.
Ancient Astronomy Pythagoras (c.582-c.500 BC) and his Students