825

By place

India

• A group of Persio-Assyrian adherents of the Church of the East, under the leadership of two Persian bishops Prod and Sappor, reached Kerala, India and resided in Quilon.

  Europe

• Emperor Louis the Pious begins a military campaign against the Wends and Sorbs. Duke Tunglo surrenders his son as hostage, and submits to Frankish rule.
• Grímur Kamban becomes the first man to set foot in the Faroe Islands, and settles down in Funningur, on the northwest coast of Eysturoy.

  Britain

• Battle of Ellandun: King Egbert of Wessex defeats Beornwulf of Mercia near Swindon. The battle marks the end of the Mercian domination of southern England. The kingdoms of Kent, Surrey, Sussex and Essex submit to Wessex, and East Anglia acknowledges Egbert as overlord.
• King Hywel ap Rhodri of Gwynedd dies after an 11-year reign. The kingdom is seized by his grand-nephew, Merfyn Frych of Man.
• Battle of Gafulford: The men of Cornish Dumnonia clash with the West Saxons at modern-day Camelford.

  By topic

Religion

• Borobudur, a Mahayana Buddhist Temple, is completed in Central Java.