822



Year 822 (DCCCXXII) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar.

Byzantine Empire

 * Byzantine general and usurper Thomas the Slav continues his revolt against Emperor Michael II. He unsuccessfully besieges Constantinople, while his fleet is destroyed by Michael's fleet, using Greek fire.
 * Battle of Kedouktos (near Heraclea): Khan Omurtag of Bulgaria sends a relief army, and defeats the Byzantine rebels.

Europe

 * Emperor Louis I performs public penance for causing his nephew Bernard's death 4 years earlier, at his palace of Attigny (Ardennes), before Pope Paschal I, and the Frankish nobles (this to restore harmony and re-establish his authority).
 * The earliest known mention of the Serbs, in Einhard's Royal Frankish Annals.

Britain

 * King Ceolwulf I of Mercia invades Powys (Wales), but is beaten back by King Cyngen. However, Ceolwulf does destroy the fortress of Deganwy, and later takes the kingdom under his control (approximate date).

Al-Andalus

 * Al-Hakam I, Umayyad emir of Córdoba, dies after a 26-year reign. He is succeeded by his son Abd al-Rahman II, who begins a military campaign against King Alfonso II of Asturias in Al-Andalus (modern Spain).

Asia

 * Kim Hŏn-ch'ang launches a short-lived rebellion in Silla, which gains control over much of the southern and western Korean Peninsula.

Central America

 * February 6 – Ukit Took becomes the last ruler (ajaw) of the Mayan city-state Copán (modern Guatemala). After his death in 830, the kingdom is wiped out, most likely from an epidemic.

Religion

 * Rabanus Maurus, a Frankish Benedictine monk, becomes abbot of Fulda, after the death of Eigil.

Births

 * Al-Mutawakkil, Muslim caliph (d. 861)
 * Ibn Abi Asim, Muslim Sunni scholar (or 821)
 * Minamoto no Tōru, Japanese poet (d. 895)
 * Xuefeng Yicun, Chinese Chan master (d. 908)

Deaths

 * June 26 – Saichō, Japanese Buddhist monk (b. 767)
 * Al-Hakam I, Muslim emir of Córdoba (b. 771)
 * Al-Waqidi, Muslim historian and biographer
 * Denebeorht, bishop of Worcester
 * Eigil of Fulda, Bavarian abbot
 * Gregory Pterotos, Byzantine general (strategos)
 * Kim Hŏn-ch'ang, Silla aristocrat and rebel leader
 * Li Yijian, chancellor of the Tang Dynasty (b. 756)
 * Tahir ibn Husayn, founder of the Tahirid Dynasty
 * Tian Bu, general of the Tang Dynasty (b. 785)
 * Winiges, duke of Spoleto (Italy)