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=== By place ===
==== Europe ====
* The [[Avars (Carpathians)|Avars]], a pagan [[Asia]]n nomadic horde that has settled down in what is today [[Hungary]], invade [[Duchy of Friuli|Friuli]] and [[Bavaria]]. King [[Charlemagne]] assembles a [[Francia|Frankish]] army, and marches down the [[Danube|Danube River]] to ravage Avar territory. A Frankish-Lombard expeditionary force, under his son [[Pepin of Italy|Pepin]], (king of the [[Lombards]]) invades the [[Drava]] Valley and devastates [[Pannonia (Roman province)|Pannonia]].
* Summer &ndash; Charlemagne loses most of his riding and [[Wagon train|baggage]] horses during an equine [[epidemic]]; many [[Saxons]] take advantage of Charlemagne's Avar setback and rebel once more.<ref>David Nicolle (2014). The Conquest of Saxony AD 782–785, p. 79. {{ISBN|978-1-78200-825-5}}</ref>
* [[September 14]] &ndash; [[Alfonso II of Asturias|Alfonso II]], the son of former king [[Fruela I of Asturias|Fruela I]], becomes ruler of [[Kingdom of Asturias|Asturias]] (Northern [[Spain]]). He moves the capital to [[Oviedo]], the commercial centre of the region.

==== Britain ====
* Princes Ælf and Ælfwine of [[Kingdom of Northumbria|Northumbria]], the sons of former king [[Ælfwald I of Northumbria|Ælfwald I]], are persuaded to leave their [[sanctuary]] in [[York Minster]], and are immediately forcibly [[Drowning|drowned]] in ''Wonwaldremere'', at the instigation of King [[Æthelred I of Northumbria|Æthelred I]].

==== Africa ====
* Emir [[Idris I of Morocco|Idris I]], founder of the [[Idrisid dynasty]] and kingdom of [[Morocco]], is poisoned on orders of Caliph [[Harun al-Rashid]].<ref>{{cite book|title=Marrakesh, Fez and Rabat |author-link=Barnaby Rogerson|last=Rogerson|first=Barnaby|publisher=Cadogan Guides|year=2010|location=London|isbn=978-1-86011-432-8|page=238}}</ref><ref>{{cite web|title=The History of Volubilis |url=http://www.sitedevolubilis.org/www/english/about/history.htm |date=25 September 2003 |access-date=29 October 2012 |publisher=Volubilis Project |ref={{sfnRef|Volubilis Project – History}} |url-status=dead |archive-url=https://web.archive.org/web/20120424103223/http://www.sitedevolubilis.org/www/english/about/history.htm |archive-date=April 24, 2012 }}</ref> He is succeeded by his son [[Idris II of Morocco|Idris II]] (only just two months old), who is raised by his mother Kenza among the [[Berber people|Berbers]] of [[Volubilis]].
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==== Asia ====
* [[April]]  &ndash; [[Tang dynasty|Tang]] forces retake the [[Annan (Tang protectorate)|protectorate of Annan]] from rebelling Annamese chieftains [[Đỗ Anh Hàn]], [[Phùng Hưng]] and Phùng An.<ref>{{cite book|title=A History of the Vietnamese |last=Taylor|first=K.W.|publisher=Cambridge University Press|year=2013|isbn=9780520074170|page=40}}</ref>