838 CE
Babak Khorramdin, an Iranian military leader, is brutally executed by order of al-Mu'tasim. Battle of Hingston Down: Ecgberht, King of Wessex, leads his men to defeat a combined force of Cornish and Danish Vikings at Hingston Down in Cornwall. Approximate date – The Stone of Destiny, an oblong block of red sandstone, is placed at Scone Palace for the coronation of the first monarchs of Scotland.
Conflict & Security
Exploration & Expansion
- The oldest known mention is made of the city of Rheine, on the Ems River (modern Germany).source
Religion & Belief
Culture & Society
- Approximate date – The Stone of Destiny, an oblong block of red sandstone, is placed at Scone Palace for the coronation of the first monarchs of Scotland.source
- King Fedelmid mac Crimthainn of Munster calls for a great royal meeting at Kildare (Cluain-Conaire-Tommain) between himself and King Niall Caille of Uí Néill.source
Births
Deaths
- January – Babak Khorramdin, Iranian leader of the Khurramite uprising against the Abbasid Caliphate, executedsource
- May 4 ? – Willerich, bishop of Bremensource
- June 10 – Ziyadat Allah I of Ifriqiya, Muslim emirsource
- November 6 – Li Yong, prince of the Tang dynastysource
- December 13 – King Pepin I of Aquitaine dies after a 21-year reign. Emperor Louis the Pious appoints his youngest son Charles the Bald as his successor. The Aquitainian nobility, however, elects Pepin's son Pepin II as the new Frankish ruler.source
- December 13 – Pepin I of Aquitaine, king of Aquitaine (b. 797)source
- Ralpacan, king of Tibet, murdered (approximate date)source
- Ujayf ibn Anbasa, Muslim general, executedsource
- Boniface II, margrave of Tuscany (approximate date)source
- Bran mac Fáeláin, king of Leinster (Ireland)source
- Frederick of Utrecht, Frisian bishop (approximate date)source
- Ratimir, duke of Lower Pannoniasource
- Al-Abbas ibn al-Ma'mun, Muslim prince and generalsource
- A conspiracy is discovered, led by General Ujayf ibn Anbasa, to assassinate al-Mu'tasim while he is campaigning, and place his nephew Al-Abbas ibn al-Ma'mun on the throne. A widespread purge of the army follows, which cements the leading role of the Turkish slave-soldiers (ghilman) in the Abbasid military establishment. Ujayf is executed and Al-Abbas put in prison, where he dies.source