Nicolaus Copernicus, mathematician and astronomer is the subject of Tuesday's Google doodle. Copernicus's work helped popularise the idea that Earth revolves around the Sun, instead of the other way round, as was commonly believed at the time, Nicolaus Copernicus was born on 19 February 1473 in the city of Thorn, in the province of Royal Prussia, in the Crown of the Kingdom of Poland. Copernicus completed his matriculation in 1491-92 Copernicus and began his studies at the Department of Arts during the heyday of the Krakow astronomical-mathematical school, which laid the foundations for his subsequent mathematical achievements. Copernicus became a pupil of the famous Albert Brudzewski, who was the first to state that the Moon moves in an ellipse and always shows its same side to the Earth, and was as established name in astronomy during the time. Nicolaus Copernicus did not graduate from the college, and later enrolled at a university in Bolgona, Italy. He stayed in Ital