Key Events in Church History By Yup, Aye, Aye 1517 BCE The Reformation 1300 BCE The Renaissance 1095 BCE The Crusades 1054 BCE The Great Schism 49 Catherine of Sienna begins letters 476 The Middle Ages 570 Birth of Pope Mohammed 795 Roman Emperor by Pope Leo II 800 Charlemagne Crowned Holy 1099 Crusaders Capture Jerusalem 1349 The Black Death 1431 Joan is burned at the stake 1881 St Francis Finds Order