856

856 in variouscalendars
Gregorian calendar	856; DCCCLVI
Ab urbe condita	1609
Armenian calendar	305; ԹՎ ՅԵ
Assyrian calendar	5606
Balinese saka calendar	777–778
Bengali calendar	263
Berber calendar	1806
Buddhist calendar	1400
Burmese calendar	218
Byzantine calendar	6364–6365
Chinese calendar	Ất hợiNiên (WoodPig); 3553 or 3346; — to —; Bính tử niên (FireRat); 3554 or 3347
Coptic calendar	572–573
Discordian calendar	2022
Ethiopian calendar	848–849
Hebrew calendar	4616–4617
Hindu calendars
-Vikram Samvat	912–913
-Shaka Samvat	777–778
-Kali Yuga	3956–3957
Holocene calendar	10856
Iranian calendar	234–235
Islamic calendar	241–242
Japanese calendar	Saikō3; (斉 hành ３ niên )
Javanese calendar	753–754
Julian calendar	856; DCCCLVI
Korean calendar	3189
Minguo calendar	1056 beforeROC; Dân tiền 1056 niên
Nanakshahi calendar	−612
Seleucid era	1167/1168AG
Thai solar calendar	1398–1399
Tibetan calendar	Âm mộc trư niên; (female Wood-Pig); 982 or 601 or −171; — to —; Dương hỏa thử niên; (male Fire-Rat); 983 or 602 or −170

Millennium:	1st millennium
Centuries:	8th century; 9th century; 10th century;
Decades:	830s; 840s; 850s; 860s; 870s;
Years:	853; 854; 855; 856; 857; 858; 859;

Year856(DCCCLVI) was aleap year starting on Wednesday(link will display the full calendar) of theJulian calendar.

Events

March 15– EmperorMichael IIIoverthrows the regency of his motherTheodora.He appoints his uncleBardasas thede factoregentand co-ruler of theByzantine Empire.^[1]

KingCharles the Baldcedes the county ofMainetoErispoe,ruler (duke) ofBrittany—this in return for anallianceagainst theVikings.
KingOrdoño I of Asturiasis said to have begun the repopulation of the town ofLeónin the northwest ofSpain(approximate date).

October 1– KingÆthelwulf of Wessexmarries the 12- or 13-year-oldJudith,daughter of Charles the Bald, atVerberie(NorthernFrance). She is crowned queen andanointedbyHincmar,archbishop ofReims.Themarriageis a diplomatic alliance betweenWessexand theWest Frankish Kingdom.^[2]
Winter – Æthelwulf returns to Wessex to face a revolt by his eldest sonÆthelbald,who usurps thethrone.Æthelwulf agrees to give up the western part of his kingdom, in order to avoid acivil war.He keeps control overSussex,Surrey,EssexandKent,over which PrinceÆthelberhthas presided.^[3]

November(approximate date) – AnearthquakeinCorinth,Greecekills an estimated 45,000 people.
December 3– Another earthquake strikes theAbbasid Caliphate(modern-dayTunisia), also killing an estimated 45,000 people.
December 22– AnotherearthquakestrikesDamghan(modern-dayIran), killing an estimated 200,000 people.

^Treadgold 1997,pp. 450–451.
^Paul Hill (2009).The Viking Wars of Alfred the Great,p. 18.ISBN 978-1-59416-087-5.
^Keynes 1998,p. 7;Abels 2002,p. 89.

Abels, Richard (2002). Morillo, Stephen (ed.)."Royal Succession and the Growth of Political Stability in Ninth-Century Wessex".The Haskins Society Journal: Studies in Medieval History.12.Woodbridge, UK: Boydell & Brewer:83–97.doi:10.1017/upo9781846150852.006(inactive June 28, 2024).ISBN 1-84383-008-6.{{cite journal}}:CS1 maint: DOI inactive as of June 2024 (link)
Keynes, Simon (1998). "King Alfred and the Mercians". In Blackburn, Mark A. S.; Dumville, David N. (eds.).Kings, Currency and Alliances: History and Coinage of Southern England in the Ninth Century.Woodbridge, UK: The Boydell Press. pp. 1–45.ISBN 0-85115-598-7.
Treadgold, Warren (1997).A History of the Byzantine State and Society.Stanford, California: Stanford University Press.ISBN 0-8047-2630-2.