849

戊辰年 (Earth Dragon)
3546 or 3339
— to —
己巳年 (Earth Snake)
3547 or 3340

阳土龙年
(male Earth-Dragon)
975 or 594 or −178
— to —
阴土蛇年
(female Earth-Snake)
976 or 595 or −177

Summer – Battle of Ostia: A Saracen Arab fleet from Sardinia sets sail towards Rome. In response, Pope Leo IV forms a coalition of maritime Italian cities, including Naples, Amalfi and Gaeta, led by Admiral Caesar — which is assembled off the re-fortified port of Ostia — and repels the Saracen marauders. Their navy is scattered, resulting in many sunken vessels. Rome is saved from plunder and the expansion of the Aghlabids.^[1]
Frankish forces under King Charles the Bald invade southern France, and conquer the territory of Toulouse. He appoints Fredelo as count (comté) of Toulouse, who founds the Rouergue dynasty. Aquitaine is submitted to the West Frankish Kingdom.

The Armenian prince Bagrat II begins a rebellion against Caliph Al-Mutawakkil, of the Abbasid Caliphate.

In the Chinese capital city of Chang'an, an imperial prince is impeached during the Tang Dynasty from his position by officials at court, for erecting a building that obstructs a street in the northwesternmost ward in South Central Chang'an.
King PyinbyaofBurma founds the city of Bagan, located in the Mandalay Region, and fortifies it with walls.

^ Benvenuti, Gino (1985). Le Repubbliche Marinare. Amalfi, Pisa, Genova e Venezia. Rome: Newton & Compton Editori. p. 15. ISBN 88-8289-529-7.

^ Eustache, D. (1971). "Idrīsids". In Lewis, B.; Ménage, V. L.; Pellat, Ch. & Schacht, J. (eds.). The Encyclopaedia of Islam, Second Edition. Volume III: H–Iram. Leiden: E. J. Brill. pp. 1035–1037. doi:10.1163/1573-3912_islam_SIM_3495. OCLC 495469525.

Events