By place Byzantine Empire •
Byzantine–Bulgarian Treaty: Emperor
Leo V the Armenian signs a 30-year peace agreement in
Constantinople with
Omurtag, ruler (
khan) of the
Bulgarian Empire. The
Rhodope Mountains become the Byzantine border again, and Leo regains its lost
Black Sea cities, after the
Bulgars have them demolished.
Central America •
April 2 – Sihyaj K'in Ich’aak II becomes the new
ruler of the Mayan city state of
Machaquila in
Guatemala after the death of Ochk'in Kaloomte' Aj Ho' Baak, and reigns until early
824.
Europe •
Hrafna-Flóki Vilgerðarson sets out from the
Faroe Islands and discovers
Iceland (documented later in the
Landnámabók) (approximate date).
Britain • King
Egbert of Wessex ravages the territories of the remaining British kingdom
Dumnonia, known as the West
Welsh (
Cornwall).
Asia • Emperor
Saga of
Japan is the first
sovereign to drink
tea (according to
legend), imported from
China by
monks. The
upper classes adopt this
beverage for
medicinal use. •
July 13 –
Wu Yuanheng, Chinese
chancellor of the Tang Dynasty, is murdered by
assassins of warlord
Wu Yuanji, in
Chang'an.
By topic Religion •
Synod of Constantinople: A council led by patriarch
Theodotus I, in the
Hagia Sophia, reinstitutes
iconoclasm. == Births ==