Who is one ancient scholar before Copernicus who was thought to have written about the heliocentric model?
~8-9th Century BC The idea that the Earth is in motion around the Sun is proposed in Sanskrit texts in ancient India. It is the first recorded evidence of heliocentrism. 4th Century BC Greek philosopher Heraclides Ponticus proposes that the apparent daily motion of stars is created by the rotation of the Earth. 3rd Century BC Greek astronomer Aristarchus of Samos advances heliocentrism in a now lost book. The ideas of Aristarchus, however, were described in a book by the great philosopher and scientist Archimedes called The Sand Reckoner. 2nd Century BC Babylonian astronomer Seleucus of Seleucia proves support for the heliocentric theory by his study of ocean tides. 150 AD Greek scientist Claudius Ptolemy publishes the Almagest, a scientific treatise which proposes a geocentric, or Earth-Centered model of planetary motion. The Geocentric Model (also called that Ptolemaic Model) remained the accepted model for over a thousand years in the Western world. 9th century Afghan astronomer Ja’
