Nicolaus Copernicus was a Renaissance-era mathematician and astronomer, who formulated a model of the universe that placed the Sun rather than the Earth at the center of the universe, in all likelihood independently of Aristarchus of Samos, who had formulated such a model some eighteen centuries earlier. The publication of Copernicus' model in his book De revolutionibus orbium coelestium, just before his death in 1543, was a major event in the history of science, triggering the Copernican Revolution and making a pioneering contribution to the Scientific Revolution.
To know that we know what we know, and to know that we do not know what we do not know, that is true knowledge.
KnowledgeNicolaus CopernicusSince the sun remains stationary, whatever appears as a motion of the sun is really due rather to the motion of the earth.
SunNicolaus Copernicus