Editing 663 (section)

=== By place ===
==== Byzantine Empire ====
* Emperor [[Constans II]] launches an assault against the [[Duchy of Benevento]] ([[Southern Italy]]). Taking advantage of the fact that Lombard king [[Grimoald I of Benevento|Grimoald I]] is engaged against [[Franks|Frankish]] forces from [[Neustria]], Constans disembarks at [[Taranto]], and besieges [[Lucera]] and [[Benevento]].
* Constans II visits [[Rome]] for 12 days (the only emperor to set foot in Rome for two centuries), and is received with great honor by [[Pope Vitalian]]. Constans gives the order to strip buildings, including the [[Pantheon, Rome|Pantheon]], of their [[Ornament (art)|ornament]]s, which will be carried back to [[Constantinople]]. 
* Constans II moves the imperial court from Constantinople to [[Syracuse, Sicily|Syracuse]]. He tries to stop the [[Early Muslim conquests|Arab conquest]] of [[Sicily]], and restores Rome as seat of the [[Byzantine Empire]]. Constans strips sacred [[Altar (Catholicism)|altar vessel]]s from [[Church (building)|church]]es all over Rome. 
* [[May 8]] &ndash; [[Forino|Battle of Forino]]: The [[Byzantine army]], led by Constans II, is defeated by the [[Lombards]] under [[Romuald I of Benevento|Romuald I]]. He seizes Taranto and [[Brindisi]], receiving military aid from the Bulgar [[Alcek|Alcek horde]], who are settled in the area of [[Ravenna]].

==== Britain ====
* King [[Oswiu of Northumbria]] invades [[Picts|Pictland]] (modern [[Scotland]]). He establishes overlordship of, at least, the Southern Pictish sub-kingdoms of [[Fortriu]] and [[Fife|Fib]] (and possibly [[Angus, Scotland|Circinn]]).
* A brief outbreak of [[Bubonic plague|plague]] hits [[Great Britain|Britain]] (approximate date).

==== Asia ====
* [[June 5]] &ndash; In [[China]], the [[Daming Palace]] becomes the government seat and royal residence of Emperor [[Emperor Gaozong of Tang|Gao Zong]] of the [[Tang dynasty]].
* [[Battle of Baekgang]]: Korean [[Baekje]] forces and their [[Japan]]ese allies are defeated in a naval battle, by a joint [[Silla]]–Tang coalition.
*[[Mount Fuji]] is estimated to have been first climbed by a monk in this year.<ref>{{Cite web|url=https://www.universetoday.com/31910/mount-fuji/|title=Mount Fuji|last=Cain|first=Fraser|date=2009-06-02|website=Universe Today|language=en-US|access-date=2019-12-18}}</ref>