Editing 773 (section)

== Events ==
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=== By place ===

==== Europe ====
* Summer &ndash; King [[Charlemagne]] and his uncle [[Bernard, son of Charles Martel|Bernard]], son of [[Charles Martel]], cross the [[Alps]] with a [[Francia|Frankish]] expeditionary force at the request of [[Pope Adrian I]]. At the foot of the mountains in the [[Susa Valley]] (Northern [[Italy]]), the [[Franks]] are hindered by [[Lombards|Lombard]] fortifications. After scouting, Charlemagne attacks the defenders from the flank, and forces the Lombards to flee to the fortified capital [[Pavia]].
* [[Siege of Pavia (773–74)#Siege|Siege of Pavia]]: Charlemagne besieges Pavia, which is poorly stocked with food. King [[Desiderius]] remains in the capital, and orders his son [[Adalgis]] to defend [[Verona]] to guard [[Gerberga, wife of Carloman I|Gerberga]], and the children of [[Carloman I]]. After a short siege, Adalgis flees to [[Constantinople]], where he is received by Emperor [[Constantine V]]. Meanwhile, the Franks capture the cities of Verona and [[Mortara, Lombardy|Mortara]]. 
* [[Saxon Wars#First phase|Saxon Wars]]: [[Saxons|Saxon]] forces seize upon Charlemagne's preoccupation with Italy to retake [[Eresburg]] and [[Sigiburg|Syburg]] (near [[Dortmund]]). They unsuccessfully attack the [[Episcopal see|episcopal]] centre of [[Büraburg]], which had been established by [[Saint Boniface|St. Boniface]] (see [[723]]).<ref>David Nicolle (2014). The Conquest of Saxony AD 782–785, p. 14. {{ISBN|978-1-78200-825-5}}</ref>

==== Britain ====
* King [[Alhred of Northumbria]] makes overtures of friendship toward Charlemagne (approximate date).

==== Abbasid Caliphate ====
* The number [[0 (number)|0]] is introduced to the city of [[Baghdad]], which will be developed in the [[Middle East]] by Arabian [[mathematician]]s, who will base their numbers on the [[Indian system]] (long after the [[Maya civilization|Maya culture]] developed the concept, cf. [[Maya numerals]]).<ref>{{cite web|url=http://yaleglobal.yale.edu/about/zero.jsp |title=The History Of Zero |date=April 25, 2009 |publisher=Yale Global |url-status=dead |archive-url=https://web.archive.org/web/20160825124525/http://yaleglobal.yale.edu/about/zero.jsp |archive-date=August 25, 2016 }}</ref>

==== Asia ====
* King [[List of Meitei kings|Khongtekcha]] of [[Manipur]] (modern [[India]]) dies after a 10-year reign; during his rule the [[Meitei language]] script first appears.<ref>{{Cite web |url=http://www.iitg.ernet.in/rcilts/meitei.htm |title=Indian Institute of Technology Guwahati |access-date=September 11, 2006 |archive-url=https://web.archive.org/web/20050411100908/http://www.iitg.ernet.in/rcilts/meitei.htm |archive-date=April 11, 2005 |url-status=dead |df=mdy-all }}</ref>

=== By topic ===

==== Ecology ====
* A large and sudden increase in [[Carbon-14|radiocarbon]] (<sup>14</sup>C) occurs around 773, in [[Coral reef|coral skeleton]]s from the [[South China Sea]]<ref>{{cite journal | pmc = 3893640 | pmid=24430984 | doi=10.1038/srep03728 | volume=4 | title=Mysterious abrupt carbon-14 increase in coral contributed by a comet | year=2014 | journal=Sci Rep | pages=3728 | last1 = Liu | first1 = Y | last2 = Zhang | first2 = ZF | last3 = Peng | first3 = ZC | last4 = Ling | first4 = MX | last5 = Shen | first5 = CC | last6 = Liu | first6 = WG | last7 = Sun | first7 = XC | last8 = Shen | first8 = CD | last9 = Liu | first9 = KX | last10 = Sun | first10 = W| bibcode=2014NatSR...4.3728L }}</ref> (see [[774-775 carbon-14 spike]]).
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