620

By place

Byzantine Empire

• Byzantine–Sassanid War: King Khosrau II captures Ancyra, an important Byzantine military base in central Anatolia. After the conquest of Egypt and Palestine, he restores the Persian Empire as it existed in 490 BC under Darius I.
• The Slavs invade the area around Thessaloniki, which is unsuccessfully besieged. The city becomes a Byzantine enclave surrounded by Slavic territory. Urban life disappears and many towns in the Balkan Peninsula become villages.

  Britain

• The Angles under King Edwin of Northumbria invade Rheged in Northern England, and expel King Llywarch Hen. He flees to Powys, and becomes a famous bard. Edwin's armies fight against Gododdin and Strathclyde.

  Asia

• King Pulakeshin II defeats the Harsha army on the banks of the Narmada River. Harsha loses a major part of his elephant force and retreats. A truce establishes Narmada as the northern boundary of the Chalukya Kingdom.

  America

• The town of Cholula is founded in central Mexico.

  By topic

Religion

• Weltenburg Abbey in Bavaria is founded by Benedictine monks.
• Isra and Mi'raj.