Nicolaus Copernicus (1473-1543)
Nicolaus Copernicus was an astronomer and mathematician from Poland who changed many peoples worldview on the universe. He was the son of a wealthy merchant who was able to go to many elite universities for his education thanks to his wealth. He became a very skilled mathematician and astronomer thanks to his education. Copernicus used his math skills and careful observation to make new theories about the universe. Based on research by Islamic scholars, he proved that the sun was the center of the universe and other planets like Earth revolved around it. He also proved that the earth rotated on its axis once a day. The Roman Catholic Church, however, did not approve of his work. The Roman Catholic Church thought that Earth was the center of the universe, so when they saw that Copernicus had a different view, they thought of it as heresy, and his findings were banned by the Roman Catholic Church. It took almost 100 years for his views to be accepted, but eventually he changed the view of the universe for many people around the world.
Sources: Wikipedia, Textbook