High and Late Middle Ages

• The Great Schism of 1054 (1054)
• Anselm of Canterbury: the Ontological Argument and the Satisfaction Theory (1070s–1109)
• The First Crusade and the Capture of Jerusalem (1071–1099)
• Peter Abelard: 'Sic et Non' and His Condemnation (1079–1142)
• Peter Lombard's 'Sentences' and the Rise of the Universities (1090s–mid-13th century)
• The Founding of the Cistercian Order and the Work of Bernard of Clairvaux (1098–1153)
• Gothic cathedrals: Suger, Saint-Denis and Notre-Dame (1137–1270) (1137–1270)
• Arnold of Brescia: preaching apostolic poverty and the Roman commune (1139–1155) (1139–1155)
• Gratian and canon law: the Concordance of Discordant Canons (c. 1140) (c. 1140 – 1918)
• The Second Crusade (1144–1149)
• The Waldensians: Peter Waldo's Movement and Its Condemnation (c. 1170–1215)
• The Third Crusade, Saladin's Capture of Jerusalem, and the Fall of Acre (1187–1291)
• The Pontificate of Innocent III: the Peak of Papal Power (1198–1216)
• The Mendicant Orders: Francis of Assisi and Dominic (1201–1226)
• The Fourth Crusade and the Sack of Constantinople (1202–1261)
• The Fourth Lateran Council (1215)
• Thomas Aquinas and Bonaventure: the Peak of Scholasticism (1221–1274)
• John Duns Scotus – the 'Subtle Doctor' (c. 1265–1308)
• William of Ockham, Nominalism, and the Via Moderna (c. 1280–1481)
• Rhineland Mysticism and the 'New Devotion' (Devotio Moderna) (late 13th century–1473)
• Boniface VIII versus Philip IV: the Bull 'Unam Sanctam' and the 'Slap of Anagni' (1294–1303)
• The Hesychast Controversy: Gregory Palamas against Barlaam of Calabria (1296–1368)
• The Avignon Papacy: the 'Babylonian Captivity' of the Church (1305–1377)
• John Wycliffe and the Lollards (c. 1330–1428)
• Lorenzo Valla Exposes the 'Donation of Constantine'; Humanism and Printing (1340–1495)
• The Black Death (1347–1350)
• The Great Western Schism, Jan Hus, and the Council of Constance (1372–1436)
• The Council of Ferrara-Florence and the Union of East and West (1438–1439)
• The Renaissance Papacy and Savonarola's Preaching in Florence (1447–1503)
• The Fall of Constantinople (1453)
• "Moscow, the Third Rome", and the establishment of the Moscow Patriarchate (15th–16th centuries)
• The Completion of the Reconquista, the Unification of Spain, and the Spanish Religious Reform (1492 (Reconquista: 11th–15th c.; reform up to 1522))