The geocentric theory was held not just before 1543, but before the 1600s. It was a scientific belief and a theory that stated the Earth was the center of the universe and that everything else was held in orbit around it.
Plato's Theory of Astronomical Convulsion
Planet Earth was held to be the centre of the Universe and everything else in the sky was held to revolve around Earth.
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The scientist associated with the heliocentric theory of planetary rotation is Nicolaus Copernicus. He proposed that the Sun, rather than the Earth, is at the center of the universe, with the Earth and other planets orbiting around it. This revolutionary idea was detailed in his work "De revolutionibus orbium coelestium," published in 1543, and laid the foundation for modern astronomy. Copernicus' theory challenged the long-held geocentric view that placed the Earth at the center of the universe.
Claudius Ptolemy's (wrong) theory with the Earth at the center of the universe lasted for more than 1000 years
Geocentric Model
Aristotle or perhaps Ptolemy?
The first European to suggest a heliocentric model of the universe was Nicolaus Copernicus. In his seminal work, "De revolutionibus orbium coelestium," published in 1543, he proposed that the Sun, rather than the Earth, is at the center of the universe. This groundbreaking idea challenged the long-held geocentric view, which placed the Earth at the center of the universe. Copernicus' theory laid the foundation for modern astronomy and significantly influenced subsequent scientific thought.
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The answer is Tomas Delong
Aristotle if thats how you spell it :)
The first person to openly reject Ptolemy's geocentric theory was Nicolaus Copernicus. In his work "De revolutionibus orbium coelestium," published in 1543, he proposed a heliocentric model, stating that the Sun, rather than the Earth, is at the center of the universe, with the planets, including Earth, orbiting around it. This revolutionary idea challenged the long-held belief in an Earth-centered cosmos and laid the groundwork for modern astronomy.