WORLD HISTORY

Detailed explanation-1: -The Polish astronomer Nicolaus Copernicus lived from 1473 to 1543. He was trained in theology and spent nearly half a century working for the Catholic Church. Yet, he devoted much of his life to try to construct a mathematical model of the solar system, a model in which the Sun, not the Earth, was at the center.

Detailed explanation-2: -This problem so perplexed the Polish priest-astronomer Nicolaus Copernicus (1473-1543) that he eventually decided to reject the geocentric model, and revive the heliocentric model of Aristarchus.

Detailed explanation-3: -Nicolaus Copernicus was a Polish astronomer and mathematician known as the father of modern astronomy. He was the first European scientist to propose that Earth and other planets revolve around the sun, the heliocentric theory of the solar system.

Detailed explanation-4: -A brilliant Italian scientist, mathematician and astronomer, Galileo Galilei knew, as few others did in his time, that the Earth revolved around the sun. And when he refused to be silent about it, he spurred his own scientific revolution.