Editing 863 (section)

==== Europe ====
* [[January 25]] &ndash; Emperor [[Louis II of Italy|Louis II]] claims [[Provence]], after the death of his brother [[Charles of Provence|Charles]]. King [[Lothair II]] receives [[Lower Burgundy]] and a part of the [[Jura Mountains]].
* King [[Louis the German]] suppresses the revolt of his son [[Carloman of Bavaria|Carloman]] (for the second time), who wants a partition (mainly of [[Bavaria]]) of the [[East Francia|East Frankish Kingdom]].
* Viking raiders again plunder [[Dorestad]] (modern [[Netherlands]]), a [[Frankish Empire|Frankish]] port on the mouth of the river [[Rhine]]. It thereafter disappears from the chronicles.
* Danish [[Vikings]] loot along the Rhine. They settle on an island near [[Cologne]], but are driven off by the combined forces of Lothair II and the [[Saxons]].
* The [[Christianization of Kievan Rus]] begins, ceasing the 63-year-long dominance of the [[Rus' Khaganate]] (approximate date).
* The first written record is made of [[Smolensk]] (according to the [[Primary Chronicle]]).
*The [[Byzantine empire]] invades [[First Bulgarian Empire|Bulgaria]] in order to impose [[Eastern Orthodox Church|Orthodox Christianity]] on [[Boris I of Bulgaria|Boris I]].