|Ab urbe condita||1572|
|Balinese saka calendar||740–741|
|Chinese calendar||戊戌年 (Earth Dog)|
3515 or 3455
— to —
己亥年 (Earth Pig)
3516 or 3456
|- Vikram Samvat||875–876|
|- Shaka Samvat||740–741|
|- Kali Yuga||3919–3920|
|Japanese calendar||Kōnin 10|
|Minguo calendar||1093 before ROC|
|Seleucid era||1130/1131 AG|
|Thai solar calendar||1361–1362|
945 or 564 or −208
— to —
946 or 565 or −207
- Spring – Emperor Louis I marries Judith of Bavaria in Aachen. She becomes his second wife and Empress of the Franks. Like many of the royal marriages of the time, Judith is selected through a bridal show.
- Ljudevit, duke of Pannonian Croatia, allies himself with the Slavs and raises a rebellion against the 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, 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 Briton, is appointed by Louis I as count of Vannes in Brittany (approximate date).
- August 11 – Caliph Al-Ma'mun returns to Baghdad, securing the city's place as the capital of the Abbasid Caliphate.
- Rogers, Barbara, Bernhard W. Scholz, and Nithardus. Carolingian Chronicles, Royal Frankish Annals Nithard's Histories. Ann Arbor: Univ. of Michigan, 1972. Print.