Editing 819 (section)

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

==== Europe ====
* Spring &ndash; Emperor [[Louis the Pious|Louis I]] marries [[Judith of Bavaria (died 843)|Judith of Bavaria]] in [[Aachen]].<ref name="Rogers">Rogers, Barbara, Bernhard W. Scholz, and Nithardus. Carolingian Chronicles, Royal Frankish Annals Nithard's Histories. Ann Arbor: Univ. of Michigan, 1972. Print.</ref> She becomes his second wife and Empress of the [[Franks]]. Like many of the royal [[marriage]]s of the time, Judith is selected through a [[Bride|bridal]] show.
* [[Ljudevit (Lower Pannonia)|Ljudevit]], duke of the [[Slavs in Lower Pannonia]], raises a rebellion against the [[Francia|Frankish Empire]]. Louis I sends an army led by [[Cadolah of Friuli]], but is defeated by the Pannonian Slavs. 
* [[Battle of Kupa]]: Ljudevit defeats the Frankish forces led by [[Borna of Croatia|Borna]], a [[vassal]] of Louis I. He escapes with the help of his elite [[bodyguard]]. Ljudevit uses the momentum and invades the [[Duchy of Croatia]].
* [[Nominoe]], a noble [[Celtic Britons|Briton]], is appointed by Louis I as count of Vannes in [[Kingdom of Brittany|Brittany]] (approximate date).

==== Abbasid Caliphate ====
* [[August 11]] &ndash; Caliph [[Al-Ma'mun]] returns to [[Baghdad]], securing the city's place as the capital of the [[Abbasid Caliphate]].
* Abbasid caliph Al-Ma'mun dismisses [[Al-Hasan ibn Sahl]] as governor of al-Iraq.
* [[Ghassan ibn Abbad]], the Abbasid governor of Khorasan rewards the Samanid brothers, [[Nuh ibn Asad | Nuh]], [[Ahmad ibn Asad | Ahmad]], [[Yahya ibn Asad| Yahya]] and [[Ilyas ibn Asad | ilyas]] for their aid against the rebel [[Rafi ibn al-Layth]], rewarding them each important cities and territories, respectively [[Samarkand]], [[Farghana]], [[Tashkent]] and [[Herat]], to govern under [[Abbasid]] suzerainty. This becomes the basis for the formation of the [[Samanid dynasty]] which will rule Khorasan for a century.

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