Editing 865 (section)

=== By place ===
==== Europe ====
* King [[Louis the German]] divides the [[East Francia|East Frankish Kingdom]] among his three sons. [[Carloman of Bavaria|Carloman]] receives [[Duchy of Bavaria|Bavaria]] (with more lands along the [[Inn (river)|Inn River]]). He gives [[Saxony]] to [[Louis the Younger]] (with [[Franconia]], and [[Thuringia]]) and [[Swabia]] (with [[Raetia]]) to [[Charles the Fat]]. Louis arranges [[marriage]]s into the local [[aristocracy]], for his sons to hold important territories along the frontiers.
* King [[Lothair II of Lotharingia|Lothair II]], threatened with [[excommunication]], takes back his first wife, [[Teutberga]]. She expresses her desire for an [[annulment]], but this is refused by [[Pope Nicholas I]].
* [[Boris I of Bulgaria|Boris I]], ruler (''[[knyaz]]'') of the [[First Bulgarian Empire|Bulgarian Empire]], suppresses a [[Rebellion|revolt]], and orders the execution of 52 leading [[boyar]]s, along with their whole families.

==== Britain ====
* The [[Great Heathen Army]] (probably no more than 1,000 men) of [[Vikings]], led by [[Ivar the Boneless]] and [[Halfdan Ragnarsson]], invades [[Kingdom of East Anglia|East Anglia]]. King [[Edmund the Martyr|Edmund of East Anglia]] buys peace with a supply of [[horse]]s.
* Viking king [[Ragnar Lodbrok]] is captured by the [[Kingdom of Northumbria|Northumbrians]] in battle, and killed by being thrown into a pit filled with venomous [[snake]]s, on the orders of King [[Ælla of Northumbria]].
* Autumn &ndash; King [[Æthelberht of Wessex]] dies after a 5-year reign, and is buried at [[Sherborne Abbey]] ([[Dorset]]). He is succeeded by his brother [[Æthelred of Wessex|Æthelred I]], as ruler of [[Wessex]].

==== Abbasid Caliphate ====
* [[Caliphal Civil War (865–866)|Caliphal Civil War]]: An armed conflict starts between the rival Muslim caliphs [[al-Musta'in]] and [[al-Mu'tazz]]. They fight to determine who takes control over the [[Abbasid Caliphate]] (until [[866]]).