Feofan/Theophan Prokopovich (18 June 168119 September 1736) was a Russian Imperial Orthodox theologian, writer, poet, mathematician, and philosopher of Ukrainian origin. Rector of the Academia Mohileana in Kiev (now Kyiv, Ukraine), and Archbishop of Novgorod. He elaborated upon and implemented Peter the Great's reform of the Russian Orthodox Church. Prokopovich wrote many religious verses and some of the most enduring sermons in the Russian language. Biography Childhood and education Feofan (born Eleazar or Elisei) Prokopovich was born in Kiev, Cossack Hetmanate, a vassal state under the Tsardom of Russia. His father, Tsereysky, was a shopkeeper from Smolensk. After the death of his parents, Eleazar was adopted by his maternal uncle, Feofan Prokopovich. Feofan Prokopovich was the governor of the Kiev Brotherhood Epiphany Monastery, professor, and rector of the Academia Mohileana. Prokopovich's uncle sent him to the monastery for primary school. After graduation, he became a student of the Academia Mohileana. In 1698, after graduating from the Academia Mohileana, Eleazar continued his education at the Volodymyr Uniate Collegium. He lived in the Basilian monastery and was tonsured as a Uniate monk under the name of Elisha or Elisey. The Uniate Bishop of Volodymyr, Zalensky, noticed the extraordinary abilities of the young monk and contributed to his transfer to the Catholic Academy of St. Athanasius in Rome, which was created by theologians to spread Catholicism among Eastern Orthodox adherents. In Rome, he enjoyed access to the Vatican Library. In addition to theology, Prokopovich also studied the works of ancient Latin and Greek philosophers, historians, attractions of old and new Rome, and the principles of the Catholic faith and of the Pope. Throughout his studies, he became acquainted with the works of Tommaso Campanella, Galileo Galilei, Giordano Bruno, and Nicolaus Copernicus. In October 28, 1701, Prokopovich left Rome without completing his full course at the academy. He passed through France, Switzerland, and Germany, before studying in Halle. There he became acquainted with the ideas of the Protestant Reformation. Return to Russia He returned to Ukraine (then part of the Tsardom of Russia) in 1704, first to Pochayiv Lavra, then to Kiev, where he renounced the Catholic union as well as his penance and tonsure with the Orthodox monks, taking the name Feofan in memory of his uncle. Beginning in 1705, Prokopovich taught rhetoric, poetics, and philosophy at the Kiev-Mogila Collegium. He also wrote the tragicomedy "Vladimir"(«Влади́мир»), dedicating it to Hetman Ivan Mazepa. At