Mikolaj Copernic was born in 1473. Copernicus put forward Heliocentrism at the age of 40. After years of observation and calculation, he completed his magnum opus "On the Operation of Celestial Bodies". 1533, 60-year-old Copernicus gave a series of lectures in Rome, but it was not until he was nearly 70 years old that he finally decided to publish them. 1543 On the day of his death on May 24th, I received a book written by him from the publishing house. Copernicus's "Heliocentrism" dealt a heavy blow to the world outlook of the church and was a great victory in the struggle between materialism and idealism. Copernicus was a giant in the European Renaissance. He devoted his whole life to astronomical research, leaving a valuable legacy to future generations. Copernicus' body was reburied in Fronburg Cathedral in Poland on May 22nd, 20 10.