AD  325

AD  328

AD  364
 
 

AD  410

AD  451
 

AD  476
 

AD  496
 

AD  614
 

AD  622
 

AD  630

AD  636

AD  800

AD 1040

AD 1054
 
 

AD 1066

AD 1071
 

AD 1095

AD 1099
 
 
 

AD 1118

AD 1187
 
 
 
 
 

AD 1189
 

AD 1204
 

AD 1208

AD 1215

AD 1221
 

AD 1256
 

AD 1258

AD 1260

AD 1261

AD 1265
 

AD 1305

AD 1307
 

AD 1312
 

AD 1314

AD 1315

AD 1336
 

AD 1367

AD 1378
 

AD 1417

AD 1430

AD 1453

 
AD 1492

AD 1523

The Council of Nicea standardizes much of orthodox Christian belief.

Helena discovers the True Cross in Jerusalem. 

The Council of Laodicea anathematizes any Jewish practice in the name of Christianity, thus officially ending the early Jewishness of the religion. 

Visigoths under Alaric sack Rome. 

Attila the Hun is defeated at the Battle of Chalons-sur-Marne, thus saving western Europe. 

Augustulus, king of the united Germanic tribes, is named King of Rome, signaling the fall of the western Roman Empire. 

Clovis, King of the Franks, is converted to Christianity and brutally spreads conversion to the faith. 

Sassanians capture Jerusalem and remove the True Cross to Ctesiphon. 

Mohammed flees to Yathrib (Medina), marking the foundation of Islam as a new religion. 

Heraclius returns the True Cross to Jerusalem. 

Muslim forces capture Jerusalem. 

Charlemagne is crowned Holy Roman Emperor. 

Rodrigo Diaz del Bivar, El Cid Compeador, is born. 

Initiated by Pope Leo IX and Michael Cerularius, Patriarch of Constantinople, relations between the churches of East and West are severed in the Great Schism. 

William the Conqueror defeats King Harold at the Battle of Hastings. 

The Seljuk Turks defeat the Byzantines at Mantzikert, stripping Byzantium of Anatolia and marking the end to Byzantine dominance. 

The first Crusade is called by Urban V. 

The Franks conquer Jerusalem and Godfrey de Boulogne is named Defender of the Holy Sepulchre. 

El Cid dies of battle wounds in Valencia. 

The Order of the Temple of Solomon is founded. 

Muslims retake Jerusalem under Saladin. 

The True Cross is captured from Guy de Luisignan by Muslim forces under Saladin at the Battle of Hatin, marking the first loss for the Crusaders while carrying the Cross into battle (although King Guy was cowering in a tent with the Cross when it was captured.) 

The Third Crusade, most famous and colorful, begins, led by Kings Richard the Lionheart and Phillip Augustus. 

Constantinople is captured and sacked by the Latins in an abortive and disgraceful Fourth Crusade. 

The Albigensian Crusade begins. 

The Magna Carta is written. 

Genghis Khan destroys the Georgian army of King George V in his first battle against Christians. 

The Assassins' stronghold of Alamut is destroyed by the Mongol armies of Sartak. 

The armies of Sartak take Baghdad. 

The Mongols are defeated by the Mamluks at 'Ayn Jalut. 

Constantinople regains her freedom from the West. 

Simon de Montfort, English advocate of democratic reform and the people, dies in battle. 

The Babylonian Captivity begins; the Papacy moves to Avignon. 

The Templars in France are arrested en masse on suspicion of heresy. 

The Templars are declared heretical and are systematically wiped out in France under Phillip IV le Belle and Clement V. 

Jacques de Molay is burned at the stake. 

Dante Alighieri completes the Comedy. 

Petrarch ascends Mount Ventoux, symbolically beginning the Renaissance. 

The Babylonian Captivity ends. 

The Great Schism within the Western church begins; one pope rules from Rome, the other from Avignon. 

The Council of Constance ends the Western Great Schism. 

Joan of Arc is burned at the stake. 

Constantinople is sacked by the Ottoman Turks under Mehmet II the Conqueror.

Grenada, the last center of Muslim culture in Spain, surrenders.

Rome under Clement VII is sacked by the Holy Roman Emperor Charles V.