Planetary system BC by Aristarchus of Samos, but received no support from most other ancient astronomers. "De revolutionibus orbium coelestium" by Nicolaus Copernicus, published in 1543, was the first mathematically predictive heliocentric model of a planetary system. 17th-century successors Galileo Galilei, Johannes Kepler, and Isaac Newton developed an understanding of physics which led to the gradual acceptance of the idea that the Earth moves round the Sun and that the planets are governed by the same physical laws that governed the Earth. In the 16th century the Italian philosopher Giordano Bruno, an early supporter of the Copernican theory that the Earth and
Christianity in the 16th century thereby turning the Grand Duchy of Moscow into Tsardom of Russia, as it was called in the coronation document. The growing might of the Russian state contributed also to the growing authority of the autocephalous Russian Church. Realizing the necessity of strengthening the ecclesiastic authority in Russia, Boris Godunov managed to persuade the Ecumenical Patriarch of Constantinople Jeremias II to establish a patriarchate in Russia. In 1589, Metropolitan Job of Moscow became the first Patriarch of Moscow and all the Rus', making the Russian Church one of the Orthodox patriarchates. Christianity in the 16th century In 16th-century Christianity, Protestantism came