855

Year 855 (DCCCLV) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar.

Millennium:	1st millennium
Centuries:	8th century 9th century 10th century
Decades:	830s 840s 850s 860s 870s
Years:	852 853 854 855 856 857 858

855 in various calendars

Gregorian calendar	855 DCCCLV
Ab urbe condita	1608
Armenian calendar	304 ԹՎ ՅԴ
Assyrian calendar	5605
Balinese saka calendar	776–777
Bengali calendar	262
Berber calendar	1805
Buddhist calendar	1399
Burmese calendar	217
Byzantine calendar	6363–6364
Chinese calendar	甲戌年 (Wood Dog) 3551 or 3491     — to — 乙亥年 (Wood Pig) 3552 or 3492
Coptic calendar	571–572
Discordian calendar	2021
Ethiopian calendar	847–848
Hebrew calendar	4615–4616
Hindu calendars
- Vikram Samvat	911–912
- Shaka Samvat	776–777
- Kali Yuga	3955–3956
Holocene calendar	10855
Iranian calendar	233–234
Islamic calendar	240–241
Japanese calendar	Saikō 2 (斉衡２年)
Javanese calendar	752–753
Julian calendar	855 DCCCLV
Korean calendar	3188
Minguo calendar	1057 before ROC 民前1057年
Nanakshahi calendar	−613
Seleucid era	1166/1167 AG
Thai solar calendar	1397–1398
Tibetan calendar	阳木狗年 (male Wood-Dog) 981 or 600 or −172     — to — 阴木猪年 (female Wood-Pig) 982 or 601 or −171

Emperor Lothair I divides Middle Francia between his three sons (Treaty of Prüm).

Events

Byzantine Empire

• November 20 – Theoktistos, co-regent of the Empire on behalf of 15-year old Emperor Michael III, is murdered on the orders of Michael.

Central Europe

• September 29 – Emperor Lothair I dies after a 15-year reign (co-ruling with his father Louis the Pious until 840). He divides the Middle Frankish Kingdom between his three sons in an agreement called the Treaty of Prüm—the eldest, Louis II, receives the northern half of Italy and the title of Holy Roman Emperor. The second, Lothair II, receives Lotharingia (the Low Countries and Upper Burgundy). The youngest, Charles, receives Lower Burgundy and Provence.

Britain

• Spring – King Æthelwulf of Wessex decides to go on a pilgrimage to Rome, accompanied by his youngest son Alfred (age 6) and a large retinue.[1] He divides the kingdom between his two eldest sons; Æthelbald receives the western part of Wessex, while Æthelberht becomes ruler over Kent, Surrey, Sussex and Essex.[2]

Abbasid Caliphate

• Caliph al-Mutawakkil sends an Abbasid army, led by the Turkic general Bugha al-Kabir, to suppress an uprising of rebellious Armenian nakharars. He subdues the country, and deports many Armenian nobles to the caliphal capital of Samarra.[3]

Religion

• July 17 – Pope Leo IV dies after an 8-year reign, and is succeeded by Benedict III as the 104th pope of Rome. Anastasius is made anti-pope by Lothair I.
• Æthelwulf grants churches in Wessex the right to receive tithes. He gives one-tenth of his lands to the Church.[4]
• The Slavic alphabet is created by Saints Cyril and Methodius.

Births

• Abu'l-Hasan Ali ibn al-Furat, Muslim vizier (d. 924)
• Gerald of Aurillac, Frankish nobleman (approximate date)
• Guaimar I of Salerno, Lombard prince (approximate date)
• Han Jian, Chinese warlord (d. 912)
• Jing Hao, Chinese painter (d. 915)

Deaths

• July 17 – Leo IV, pope of the Catholic Church (b. 790)
• September 20 – Gozbald, abbot and bishop of Würzburg
• September 29 – Lothair I, Frankish king and emperor (b. 795)
• November 20 – Theoktistos, Byzantine chief minister
• December 8 – Drogo of Metz, illegitimate son of Charlemagne (b. 801)
• Ahmad ibn Hanbal, Muslim scholar and theologian (b. 780)
• Boso the Elder, count of Turin and Valois
• Cyngen ap Cadell, king of Powys (Wales)
• Elisedd ap Cyngen, king of Powys (Wales)
• Pepin, count of Vermandois (approximate date)
• Sahnun ibn Sa'id, Muslim jurist (or 854)
• Sico II, prince of Salerno (Italy)

References

1. Abels 1998, p. 72. sfn error: no target: CITEREFAbels1998 (help)
2. Paul Hill (2009). The Viking Wars of Alfred the Great, p. 17. ISBN 978-1-59416-087-5
3. Ter-Ghevondyan. Arab Emirates, pp. 83–86.
4. Stevenson 1904, p. 186. sfn error: no target: CITEREFStevenson1904 (help)