Editing 668 (section)

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

==== Byzantine Empire ====
* [[July 15]] &ndash; Emperor [[Constans II]] is killed under mysterious circumstances in his [[Bathtub|bath]], during a [[mutiny]] at [[Syracuse, Sicily|Syracuse]]. The Byzantine court returns to [[Constantinople]] after an absence of 5 years, in which the [[Umayyad Caliphate|Muslim-Arabs]] have made annual invasions and devastations of [[Anatolia]]. Probably [[Assassination|assassinated]] by his [[Chamberlain (office)|chamberlain]] after a 27-year reign, Constans is succeeded by his son [[Constantine IV]] (the "Bearded"), alongside his brothers [[Heraclius (son of Constans II)|Heraclius]] and [[Tiberius (son of Constans II)|Tiberius]] as co-emperors.
* [[Mezezius]], Byzantine general and ''[[Patrician (ancient Rome)#Late Roman and Byzantine period|patrikios]]'' ("first patrician"), is proclaimed emperor by the army in Syracuse. Constantine IV organizes an expedition to suppress the military revolt in [[Sicily]].

==== Europe ====
* [[Ebroin]], [[mayor of the palace]], becomes ''de facto'' ruler of [[Neustria]] and (in theory) "of the [[Franks]]". According to [[Bede]], he runs the nation's [[foreign policy]] and [[internal security]].
* [[Kotrag]], ruler (''[[khagan]]'') of [[Old Great Bulgaria|Great Bulgaria]], leads the [[Khazars]] in overthrowing his brother [[Batbayan of Bulgaria|Batbayan]] of the [[Onogurs]], and moves south into the [[Carpathian Mountains]].
* [[Asparukh of Bulgaria|Asparukh]], leader of the [[Utigurs]], leaves the [[Danube Delta|Ongal]] area to Kotrag, and leads his people into [[Moesia]] in [[Northern Bulgaria]] (approximate date).

==== Arabian Empire ====
* Caliph [[Muawiyah I]] receives an invitation from [[Saborios]], Byzantine commander of the troops in [[Armenia]], to help overthrow Constantine IV in Constantinople.{{sfn|Bury|1889|p=306}} He sends a Muslim army under his son [[Yazid I|Yazid]], against the [[Byzantine Empire]]. 
* Yazid reaches [[Chalcedon]] in [[Bithynia]], and takes the important Byzantine center [[Amorium]] (modern [[Turkey]]).{{sfn|Bury|1889|p=307}}
* [[Arab people|Arab]] forces conquer the [[Garamantes]] in the [[Sahara]] desert ([[Libya]]).

==== Asia ====
* Chinese troops sent by the [[Tang dynasty]] emperor [[Emperor Gaozong of Tang|Gao Zong]] complete their expedition in the [[Korean Peninsula]]. Leaders of the expedition have been selected by the emperor's powerful concubine [[Wu Zetian]]. The kingdom of [[Goguryeo]] is overthrown; the [[Unified Silla]] period starts.
* Emperor [[Emperor Tenji|Tenji]] of [[Japan]] officially accedes to the throne, and hunts on the Moor of Ōmi-Gamōno. The letters exchanged between prince [[Emperor Temmu|Ōama]] and [[princess Nukata]] are recorded in [[Man'yōshū]].
* The monk [[Gyōki]], one of the founders of [[Japanese Buddhism]], is born in the Ōtori District of [[Kawachi Province]].<ref>Kashiwahara Y., Sonoda K. "Shapers of Japanese Buddhism", Kosei (1994)</ref>

=== By topic ===
==== Religion ====
* [[Theodore of Tarsus]] is made [[archbishop of Canterbury]]. He introduces a strict Roman [[Parochialism|parochial]] system that becomes the model for the [[secular state]].
* [[Colman of Lindisfarne]], accompanied by 30 [[Disciple (Christianity)|disciple]]s, sails for [[Ireland]], settling down at [[Inishbofin, County Galway|Inishbofin]] and founds a [[monastery]].{{sfn|Walsh|2007|p=127}}
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