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537 Hagia Sophia. Workers finish Constantinople’s Hagia Sophia, which is the largest church in the world until St Peter’s Basilica is built in Rome. Capital of the Eastern Roman (Byzantine) Empire, Constantinople outlives the Western Roman Empire by 1000 years.
476 Odoacer. Romulus Augustus surrenders Rome to the German chieftain Odoacer, 66 years after Alaric and the Visigoths' 3-day "Sack of Rome" leaves the city a smoking ruin.
393 Augustine and other Christian leaders meet near his home in Hippo and pick 27 books that will form the Bible’s new testament.
330 Constantine makes Byzantium the capital of a re-united Empire. He renames it “Constantinople.”
286 Diocletian divides the Roman empire.
126 Pantheon. Under the orders of Emperor Hadrian, workers finish building Rome's Pantheon, the largest dome in the world for over 1300 years, until it is surpassed by Il Duomo di Firenze.
116 Trajan commands Roman soldiers who take the Parthian capital of Ctesiphon near Babylon, and the Roman Empire reaches its territorial peak.
100 Teotihuacan. Workers finish building Teotihuacan's Pyramid of the Sun. 20 stories high, it is one of the largest structures built in Pre-Contact America.
80 Colosseum opens. Nearly all previous amphitheaters were dug into hillsides for extra support, but The Colosseum, whose construction was ordered by Emperor Vespasian, is free-standing.
70 Mark writes about Jesus of Nazareth.
54 Nero becomes emperor. He put many Christians to death and has a reputation for being one of the cruellest Roman emperors.
51 Paul writes to the Thessalonians, encouraging friends there who admire the teachings of Jesus of Nazareth, who died twenty years before.