General
Population: Between 190 and 230 million*
- Medicine: Bubos described in Anglo-Saxon Chronicle by the Venerable Bede (Likely 735)
- Religion: Synod of Whitby – Oswy abandons Celtic Christian Church and accepts faith of Rome – decline of Celtic Christians
Europe
- England: Synod of Whitby in England under King Oswiu chooses Roman Christianity over Celtic Christian teachings
Founding of St. Peter's – York boys school
Plague outbreak in Saxon areas
Oswiu named King of Deria and Bernicia (Northumbria)
- Ireland: Famine preceded second appearance of Buidhe Chonnail in Ireland