The eastern hemisphere in 800AD.

Events

By place

Europe

• September 15 – Oldest known mention of Castile.

• December 25 – Charles the Great is crowned emperor by Pope Leo III in Rome, marking the start of the Holy Roman Empire.

• Celtic monks begin work on the Book of Kells on the Island of Iona.

• The town of Shrewsbury, England is founded.

South Asia

• King Govinda III of the Rashtrakuta Dynasty starts his military campaign against Northern India.

• King Vatsaraja of the Pratiharas is defeated by Dhruva in the Rashtrakuta-Pratihara conflict for the control of Kannauj city.

East Asia

• Emperor Dezong of Tang China, unable to quell the rebellion of military governor Wu Shaocheng, pardons him.

Africa

• Bantu-speaking people settle in present-day Zambia (approximate date).

• In Tunisia, Ibrahim I ibn al-Aghlab is appointed as hereditary Emir by Abbasid Caliph Harun al-Rashid.

• The west African Kingdom of Takrur is founded (approximate date), flourishing roughly parallel to the Ghana Empire.

Americas

• The Arawak people settle on the island of Barbados from South America (approximate date).

• The Mississippian Period begins in the central North American Continent.

• The Mayan civilization begins its decline

Oceania

• The Māori start migrating to New Zealand (approximate date).

Births

• supposed date of birth of Nominoe, first king of all Brittany.

Deaths

• Saint Alkelda