Almagest (Mathematical treatise)

The Almagest is a significant ancient astronomical text written by the Greek scholar Claudius Ptolemy in the 2nd century. It compiles the knowledge of the heavens at that time, presenting a geocentric model where Earth is at the center of the universe. The work details the movements of stars and planets, using mathematical calculations to predict celestial events. For over a thousand years, the Almagest shaped astronomical thought and influenced both Islamic and European science, serving as a foundational text until the Copernican revolution introduced a heliocentric model, placing the Sun at the center of our solar system.