841

841 in various calendars
Gregorian calendar	841; DCCCXLI
Ab urbe condita	1594
Armenian calendar	290; ԹՎ ՄՂ
Assyrian calendar	5591
Balinese saka calendar	762–763
Bengali calendar	248
Berber calendar	1791
Buddhist calendar	1385
Burmese calendar	203
Byzantine calendar	6349–6350
Chinese calendar	庚申年 (Metal Monkey); 3538 or 3331; — to —; 辛酉年 (Metal Rooster); 3539 or 3332
Coptic calendar	557–558
Discordian calendar	2007
Ethiopian calendar	833–834
Hebrew calendar	4601–4602
Hindu calendars
- Vikram Samvat	897–898
- Shaka Samvat	762–763
- Kali Yuga	3941–3942
Holocene calendar	10841
Iranian calendar	219–220
Islamic calendar	226–227
Japanese calendar	Jōwa 8; (承和８年)
Javanese calendar	738–739
Julian calendar	841; DCCCXLI
Korean calendar	3174
Minguo calendar	1071 before ROC; 民前1071年
Nanakshahi calendar	−627
Seleucid era	1152/1153 AG
Thai solar calendar	1383–1384
Tibetan calendar	阳金猴年; (male Iron-Monkey); 967 or 586 or −186; — to —; 阴金鸡年; (female Iron-Rooster); 968 or 587 or −185

Millennium:	1st millennium
Centuries:	8th century; 9th century ; 10th century;
Decades:	820s; 830s; 840s ; 850s; 860s;
Years:	838; 839; 840; 841 ; 842; 843; 844;

Year 841 (DCCCXLI) was a common year starting on Saturday (link will display the full calendar) of the Julian calendar.

Events

June 25 – Battle of Fontenay: Frankish forces of Emperor Lothair I, and his nephew Pepin II of Aquitaine, are defeated by allied forces of King Louis the German, and his half-brother Charles the Bald, at Fontenoy (Eastern France), in a civil war among the three surviving sons of the former emperor Louis the Pious. A total of 40,000 men are killed, including the Frankish nobles Gerard of Auvergne and Ricwin of Nantes, fighting on the side of Charles.^[1]
Summer – Vikings sail up the River Seine and devastate the city of Rouen in Normandy. They burn the Benedictine monastery of Jumièges Abbey; 68 captives are taken, and returned on payment of a ransom, by the monks of St. Denis.^[2]

The town of Dyflin (meaning "Black Pool") or Dublin (modern Ireland) is founded by Norwegian Vikings, on the south bank of the River Liffey. The settlement is fortified with a ditch and an earth rampart, with a wooden palisade on top. The Norsemen establish a wool weaving industry, and there is also a slave trade. An artificial hill is erected, where the nobility meets to make laws and discuss policy.

Constantine Kontomytes, Byzantine general (strategos) of the Thracesian Theme, inflicts a severe defeat on the Cretan Saracens. He leads a Byzantine expeditionary force, to raid the monastic community near Mount Latros (modern Turkey).^[3]
Venice sends a fleet of 60 galleys (each carrying 200 men) to assist the Byzantines in driving the Arabs from Crotone, but the attack fails. Muslim troops conquer the city of Brindisi (approximate date).^[4]

A pro-Umayyad rebellion, led by al-Mubarqa in Palestine, breaks out against caliph al-Mu'tasim of the Abbasid Caliphate (ending in 842).^[5]

In the Chinese capital of Chang'an, the West Market (and East Market) are closed every night one hour and three quarters before dusk (by government order); the curfew is signaled by the sound of 300 beats to a loud gong. After the official markets have been closed for the night, small night markets in residential areas thrive with plenty of customers, despite government efforts to shut them down. With the decline of the government's authority (by mid 9th century), this edict (like many others) is largely ignored, as urban dwellers keep attending the night markets regardless.

^ Eric Joseph, Struggle for Empire, p. 103. Cornell University, 2006. ISBN 0-8014-3890-X. Joseph states this number, given by Agnellus of Ravenna, is probably exaggerated.
^ Recorded in the Chronicle of Fontenelle Abbey.
^ Treadgold 1988, pp. 324–325.
^ J. Norwich, A History of Venice, p. 32.
^ "Al-Muʿtaṣim | ʿAbbāsid caliph". Encyclopedia Britannica. Retrieved May 18, 2021.