1,500 years :D
1,500 Years .
Ptolemy. (his full name was Claudius Ptolemaeus).
he Earth-centered Universe was proposed by Aristotle and Ptolemy.
Ptolemy's view of the universe placed the sun, the other solar system planets, and the stars inside a huge rotating sphere centered a point in space close to the earth.
Nicolaus Copernicus < NOVA NET ANSWER
Nicolaus Copernicus < NOVA NET ANSWER
The earth-centered model created by Ptolemy is called the Ptolemaic model or geocentric model. It proposed that the Earth was the center of the universe, with all celestial bodies moving around it in circular orbits.
Ptolemy believes that the earth is the center of the universe.
that the earth was in the middle of the universe
Aristarchus came up with the heliocentric model of the solar system about the same time that Aristotle developed the geocentric model. But since it was OBVIOUS that the Sun went around the Earth, the geocentric model prevailed for about 1800 years before Copernicus realized that the math worked better if the Sun was at the center.
Ptolemy
his model of the universe.