Define the Heliocentric Theory and who was the man responsible for creating this theory?

Nicolaus Copernicus

Explanation:  He was the first modern European scientist to propose that Earth and other planets revolve around the sun, or the Heliocentric Theory of the universe

Heliocentrism is the astronomical model in which the Earth and planets revolve around the Sun at the center of the Universe. Historically, heliocentrism was opposed to geocentrism, which placed the Earth at the center. The notion that the Earth revolves around the Sun had been proposed as early as the 3rd century BC by Aristarchus of Samos, but at least in the medieval world, Aristarchus' heliocentrism attracted little attention—possibly because of the loss of scientific works of the Hellenistic period. Nicolaus Copernicus, It was not until the 16th century that a mathematical model of a heliocentric system was presented, by the Renaissance mathematician, astronomer, and Catholic cleric Nicolaus Copernicus, leading to the Copernican Revolution.

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