Editing 843 (section)

=== By place ===

==== Europe ====
*[[May 24]] &ndash; [[Battle of Blain]]: Breton forces under [[Erispoe]], count of [[Vannes]], defeat the [[Franks]] led by [[Renaud d'Herbauges]], near the town of [[Messac, Ille-et-Vilaine|Messac]], at the [[Vilaine|River Vilaine]]. This battle marks a [[Celtic Britons|Breton]] war between Charles the Bald and [[Nominoe]], duke of [[Kingdom of Brittany|Brittany]].
* Summer &ndash; [[Vikings|Viking]] raiders attack [[Nantes]], located on the [[Loire|River Loire]]; they kill the town's [[bishop]] along with many of the [[clergy]], and murder men, women and children. They plunder the western parts of [[Aquitaine]] and reach an island north of the mouth of the [[Garonne|River Garonne]], near what later will be [[La Rochelle]]. There the Vikings bring materials from the mainland and build houses to spend the [[winter]].
* [[August 10]] &ndash; [[Treaty of Verdun]]: The [[Carolingian Empire|Frankish Empire]] is divided into three kingdoms, between the three surviving sons of the late emperor [[Louis the Pious]]. King [[Louis the German]] receives the eastern portion (everything east of the [[Rhine|River Rhine]]), called the [[East Francia|Eastern Frankish Realm]], which is the precursor to modern-day [[Germany]]. Emperor [[Lothair I]] receives the central portion ([[Low Countries]], [[Alsace]], [[Lorraine (region)|Lorraine]], [[Kingdom of Burgundy|Burgundy]] and the northern half of [[Italy]]), called the [[Middle Francia|Central Frankish Realm]]. King [[Charles the Bald]] receives the western portion (everything west of the [[Rhône|River Rhône]]), called the [[West Francia|Western Frankish Realm]], which later becomes [[France]].

==== British Isles ====
* King [[Kenneth MacAlpin]] (Cináed mac Ailpín) of the [[Scottish people|Scots]] also becomes [[List of kings of the Picts|king of the Picts]]; he is crowned (on the [[Stone of Scone|Stone of Destiny]]) as first [[monarch]] of the new nation of [[Kingdom of Scotland|Scotland]]. The [[House of Alpin|Alpin Dynasty]] of [[List of Scottish monarchs|Scottish kings]] begins to reign.

==== Arabian Empire ====
* Summer &ndash; A [[Byzantine Empire|Byzantine]] expedition, led by [[Theoktistos]], conquers [[Emirate of Crete|Crete]] from the [[Saracens]]. After initial success, he is forced to abandon his army, due to political intrigues in [[Constantinople]]. The troops are left behind and slaughtered by the [[Arab Muslims|Arabs]].<ref>Makrypoulias (2000), p. 351.</ref><ref>Treadgold (1997), p. 447.</ref>
* [[Al-Andalus]]: The city of [[Zaragossa]] rises against the [[Umayyad Caliphate|Umayyad]] [[Emirate of Córdoba]] in modern-day [[Spain]].<ref>{{cite book|last=Rucquoi|first=Adeline|title=Histoire medieval de la Péninsule ibérique|year=1993|publisher=Seuil|location=Paris|isbn=2-02-012935-3|page=87}}</ref>

==== Asia ====
* In the Chinese capital of [[Chang'an]], a large fire consumes 4,000 homes, [[warehouse]]s and other buildings in the [[Chang'an#East Central Chang'an|East Market]], yet the rest of the city is at a safe distance from the blaze which is largely [[quarantine]]d in [[Chang'an#East Central Chang'an|East Central Chang'an]], thanks to the large width of roads in Chang'an that produce [[Firebreak|fire break]]s.