Also known as the founder of modern astronomy, Nicolaus Copernicus was the first His work forever changed the place of man in the cosmos; no longer could man, astronomers who came to Copernicus to learn more about his new theory.
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Answer this question…Before he proposed his heliocentric theory, most Europeans believed that the sun revolved around Earth.
anex: developing a heliocentric theory
His most important work, On the Revolution of Heavenly Spheres , was written entirely by him. He used other's astronomical observations, but wrote the book on his own.A fellow mathematician, Georg Rheticus, was very helpful in convincing Copernicus to publish his work.
Nicolaus Copernicus was a true Renaissance man. He also was a lawyer, tax collector, a doctor, military governor, judge, vicar-general of canon law and a Polish astronomer. Nicolaus Copernicus said that the earth was not stationary. He also said the earth turned on its axis once a day and he doubted the earth lay in the middle of the universe. He claimed that the sun was the center of the universe and all the planets revolved around the sun. He also published a book on the revolution of the heavenly bodies. His book De Revolutions was his most famous piece of work.
Nicolaus Copernicus' father was a merchant, and his mother was the daughter of a (wealthy) merchant. As they lived in the 15th century, they fit "appropriately" into society of the time and the locale (Royal Prussia) where they resided. This almost certainly means that Copernicus' mother did not "work" or have a "professional" life, per se.