Late antiquity (324 - 633 AD) 

  • 324 - foundation of Constantinople (Byzantium) by Constantine.
  • 368 - Count Theodosius routs barbarians in Britain and puts down rebellion of Valentinus.
  • 382 - Magnus Maximus defeats Picts and Scots.
  • 395 - division of the Empire between the sons of Theodosius.
  • 398 - Britain suffers from attacks by Saxons, Picts and Scots.
  • 406-7 - legions in Britain elect a series of usurpers - Marcus, Gratian, and finally Constantine III, who crosses to Gaul with Roman troops.
  • 408 - Britain is devastated by Saxon incursions.
  • 410 - sack of Rome by the Visigoths; Rome formally renounces Britain.
  • 429 - St Germanus visits Britain to combat Pelagian heresy.
  • 439 - Vandals conquer Carthage & Africa.
  • 451 - defeat of the Huns at Chalons.
  • 455-485 - Ambrosius Aurelianus leads a series of victories over the Saxon invaders.
  • 476 - end of the Roman Empire in the west.
  • 490-526 - Theoderic the Ostrogoth rules Italy.
  • 486-511 - Reign of Clovis, King of the Merovingian Franks.
  • 506 - Franks convert to Catholic Christianity.
  • 507 - Franks defeat Visigoths and annex Aquitaine.
  • 527-565 - Justinian attempts reconquest of Italy and Africa.
  • 542-3 - plague ravages the Empire, eventually reaching Britain (549)
  • 545 - St David establishes St David's in Wales.
  • c549 - Gildas writes De excidio Britanniae.
  • 563-65 - St Columba establishes monastery of Iona, and begins mission among the Picts.
  • 573-594 - Gregory of Tours is bishop of Tours.
  • 577 - Battle of Dyrham - British towns of Gloucester, Cirencester & Bath fall to the Saxons.
  • 587 - Recared, King of the Visigoths, converts to Catholicism.
  • 597 - Mission of Augustine to Britain. Establishes bishopric at Canterbury in the Kingdom of Kent.
  • 600 - invasion of Italy by the Lombards.
  • 628 - conversion of King Eadwine of Northumbria.
  • 633 - armies of Islam begin to attack Syrian province of Eastern Empire; defeat of Eadwine by Penda of Mercia and Cadwallon ap Cadfan, King of the Britons of Gwynedd.

(c) 2011 Jeremy Baker