How ptolemy change the world?

Ptolemy, an ancient Greek astronomer and mathematician, significantly changed the world through his geocentric model of the universe, which positioned the Earth at the center and placed the sun, moon, and planets in orbit around it. His work, particularly the "Almagest," became the authoritative text on astronomy for over a thousand years, influencing both Islamic and European scientific thought. This model shaped medieval cosmology and persisted until the Copernican revolution in the 16th century, marking a pivotal moment in the history of science. Ptolemy's contributions also extended to geography, where he developed maps and the concept of latitude and longitude, laying the groundwork for modern cartography.