313 – Edict of Milan: Emperor Constantine legalizes Christianity in the Roman Empire.
337 – Emperor Constantine is baptized on his deathbed.
380 – Edict of Thessalonica: Emperor Theodosius I declares Christianity the state religion of the Roman Empire.
496 – At the Battle of Tolbiac, King Clovis of the Salian Franks, facing defeat against the Alemanni, prays to the Christian God for victory, promising to convert if he won. Miraculously, the tide of the battle turns, and Clovis emerges victorious.
509 – Clovis becomes Clovis I, first King of the Franks, considered first king of France. He will promote Christianity.
529 – The order of St. Benedict is founded in Italy by St. Benedict of Nursia. This is the first of the great monastic orders.
597 – St. Augustine of Canterbury begins the conversion of Anglo–Saxon England.
722 – St. Boniface begins missionary work in Germany.
800 – Charlemagne, King of the Franks, becomes the first emperor of the Holy Roman Empire. He will promote Christianity throughout his empire.
815 – In Kufa, Mesopotamia, Muslim alchemist Jabir ibn Hayyan demonstrates a perpetual motion engine. He automates several agricultural estates.
821 – In Baghdad, Mesopotamia, mathematician and wizard Al–Khwarizmi argues that wizards should be considered holy. After his death, some will worship him as an incarnation of Allah.
880 – Richard the Justiciar, count of Autun, becomes first Duke of Burgundy.
899 – Knights of St. Maurice founded in the Duchy of Saxony, Holy Roman Empire.
924 – Æthelstan, King of Wessex, becomes first King of England.
926 – In Ray, Persia, physician and wizard Al–Razi argues that death should not be considered inevitable. His work will become influential in magical healing and the prolongation of life.
929 – In Harran, Mesopotamia, astronomer Al–Battani ascends into the sky to join the spirits of the air and never returns. His ascension is followed by several years of recurrent turbulent weather.
11th–12th centuries. Investiture Controversy: A conflict between the papacy and secular rulers over the appointment of church officials, ending in a bitter compromise.
1000 – Stephen I becomes first King of Hungary.
1011 – Knights of St. Andrew founded in Burgundy.
1025 – Boleslaw the Brave, Duke of Poland, becomes Boleslaw I, first King of Poland.
1026 – Physician and wizard Ibn Sina cleanses the entire city of Bukhara, Persia, of the plague.
1030 – The city of Basra, Mesopotamia, is devastated when optician Ibn al–Haytham fills the city with spirits of blazing light, for a mystical religious reason understood only to himself.
1035 – Romero, Count of Aragon, becomes Romero I, first King of Aragon.
1037 – Ferdinand, Count of Castile, becomes Ferdinand I, first King of Castile.
1051 – Knights of St. George founded in Aragon.
1054 – The Great Schism. The Roman Catholic and Eastern Orthodox Church formally split, primarily over issues of papal authority and theological differences.
1088 – Founding of University of Bologna in Italy. This is the first of the great universities.
1095 – Pope Urban II calls for a crusade to capture Jerusalem.
1098 – Cistercians founded in Burgundy by St. Robert of Molesme.
1099 – Crusaders capture Jerusalem and establish the Kingdom of Jerusalem.
1119 – Knights Templar founded in Jerusalem.
1120 – Norbertines founded in France by St. Norbert of Xanten.
1139 – Alfonzo, Count of Portugal, becomes Alfonzo I, first King of Portugal.
1150 – Founding of University of Paris in France.
1167 – Founding of University of Oxford in England.
1198 – Teutonic Knights founded in Kingdom of Jerusalem by German crusaders.
Late 12th century – Carmelites founded by hermits in the Kingdom of Jerusalem.
CA 1200 – In Diyarbakir, Turkey, mechanical inventor Al-Jazari creates artificial people able to speak and reason. He will continue to make people throughout his life.
1208 – Founding of University of Palencia, Castile.
1209 – Franciscans founded in Italy by St. Francis of Assisi.
1209–1229 - Albigensian Crusade: A military campaign initiated by the Catholic Church to eliminate the Cathar heresy in southern France, resulting in widespread persecution and the establishment of the Inquisition.
1214-1217 – In the Iberian peninsula, Islamic Granada undergoes a revolution as pagans try to establish a pagan state. Somehow, the use of magic in war unleashed monsters across the kingdom, depopulating it. From now on, the reconquest will not be fought against Islamic forces, but monstrous and magical ones.
1215 – Dominicans founded in France by St. Dominic.
1226 – Founding of the State of the Teutonic Knights in northern Europe.
1264 – Augustinians formally established by Pope Urban IV.
1290 – Founding of the University of Coimbra in Portugal.
1291 – Fall of Acre to Egyptian Mamluks marks the end of the Kingdom of Jerusalem.
1300 – University of Lleida founded in Catalonia, Crown of Aragon.
1307 - King Philip IV of France orchestrates charges of heresy and blasphemy against the Knights Templar.
1312 – The Knights Templar are officially disbanded by Pope Clement V in 1312, but then almost immediately reinstated when both foreign dignitaries and Italian banks and merchants object to the damage the loss of Templar banks would do to the economies of Western Europe. Many Christians are outraged by this defiance of the papal will, especially among the poor orders inclined to be suspicious of money. French Cistercians and Norbertines urge the Pope to quit the corrupt city of Rome. To the amazement of Christendom, he does, moving the papacy to the French city of Avignon. The wounds are not quick to heal and Popes will reside in Avignon for the next 65 years, until 1377.
1337 – Start of the Hundred Years War: A prolonged series of conflicts between England and France over claims to the French throne. Burgundy will play a crucial role, switching sides at will.
1347–1348: Civil war within Aragon between King Peter IV and the Union of Aragonese nobles, which ends with the defeat of the Union.
1348 – The Knights of St. George replace the disgraced Knights of St. Edmund as guardians of England.
1356–1375: “War of the Two Peters”. A conflict between the Kingdom of Aragon and the Kingdom of Castile, named after the two kings, Peter IV of Aragon and Peter I of Castile.
1363-1366 – Mamluk Egyptians driven from the Holy Land by pagans. The pagan kingdoms in turn will be destroyed by monstrous, demonic creatures. Despite the fact that Palestine is a fiend-haunted land, some time in the next century, new cities of Tyre and Sidon will arise. How the pagan cities survive the monsters is unknown. It may have to do with the plentiful human sacrifices they offer to their dark gods, or other pagan magics.
1364 – University of Jagiellonian founded in Poland.
1366-1369 – War of the Castilian Succession. A civil war between Peter I of Castile and his half-brother Henry of Trastámara, which ends with Henry's victory and the establishment of the Trastámara dynasty.
1367 – University of Pécs founded in Hungary.
1369-1382 – Fernandine Wars: A series of conflicts between Castile and Portugal over claims to the Castilian throne.
1377 – Under pressure from the great religious orders, Pope Gregory XI returns the papal residence to Rome. As Pope, he is regarded by many as a servant to wealth, both the wealth of the Italian banks and of the great agricultural orders like the Cistercians, Benedictines and Augustinians.
1378 – Death of Pope Gregory XI and succession crisis as different factions strive to get their candidate elected. The surprise victor was the radical Franciscan candidate Pope Urban VI, who opposed the wealth of the church. The election is almost immediately declared invalid and Clement VII, supported by Cistercians, Dominicans, and Norbertines, looking to curb the influence of Italy, is elected instead. When Urban, supported by the Knights of St. Peter, refuses to abdicate, Clements set up a rival papacy in Avignon.
1383-1385 – A period of civil war and political crisis in Portugal, which ends with the Battle of Aljubarrota in 1385, securing Portuguese independence from Castile.
1387 – Christianization of Lithuania, the last pagan state in Europe, by the Teutonic Knights.
1405 – In the east, Timur the Great, emperor of the Timurid empire, dies, and his empire collapses into civil war. The new great powers that emerge, Babylon and Nineveh, are pagan states.
1407-1435 – Burgundy goes to war with the Armagnac faction in France over succession to the French crown. The war will end with reconciliation and alliance against England.
1409 - The Council of Pisa attempts to resolve the schism in the church by declaring both existing popes illegitimate and electing Alexander V. Alexander wishes to greatly curb scholarship based on pagan thought and is opposed by academically inclined orders like the Dominicans, Benedictines and Augustinians. Alexander is not generally accepted and result is a third Pope, residing in Pisa.
1414-1418 - Council of Constance: The council, with the support of the Knights of St. Peter, arranges for the resignation or deposition of all three popes and elects Martin V as the new pope, restoring unity to the Church. Martin serves the vested interests of wealth, and favors the interests of Italians, but is a patron of scholarship and the arts.
1419-1434 – Hussite Wars: A series of wars fought between the Hussite religious reformers in Bohemia and the Holy Roman Empire.
1421-1426 – The Ossiran Revolution: Barsby, Mamluk Sultan of Egypt, is defeated by pagan Egyptian forces. Egypt becomes a pagan state under Ramses XII and Islam is driven underground.
1447 – After the death of Pope Eugene IV, the present pope, Nicholas V, is elected. Nicholas is a patron of academia and the arts but is seen as favoring the interests of wealth and of Italy.
1453 – End of the Hundred Years War between England France. France regains control of all territories except Callais. The French monarch is strengthened, and England’s weakened.
1453 – In Constantinople, most populous Christian city in the world, a mob holds an illegal rite to Hecate, Greek goddess of magic, on the night of the feast of St. Nicholas, in his great church, the Nea Ekklesia. It isn’t clear exactly what followed, by the city was devastated by monstrous creatures which have overrun all of Anatolia and put an end of the Byzantine Empire. All of Christendom is in shock.