854

854 in various calendars
Gregorian calendar	854; DCCCLIV
Ab urbe condita	1607
Armenian calendar	303; ԹՎ ՅԳ
Assyrian calendar	5604
Balinese saka calendar	775–776
Bengali calendar	261
Berber calendar	1804
Buddhist calendar	1398
Burmese calendar	216
Byzantine calendar	6362–6363
Chinese calendar	癸酉年 (Water Rooster); 3551 or 3344; — to —; 甲戌年 (Wood Dog); 3552 or 3345
Coptic calendar	570–571
Discordian calendar	2020
Ethiopian calendar	846–847
Hebrew calendar	4614–4615
Hindu calendars
- Vikram Samvat	910–911
- Shaka Samvat	775–776
- Kali Yuga	3954–3955
Holocene calendar	10854
Iranian calendar	232–233
Islamic calendar	239–240
Japanese calendar	Ninju 4 / Saikō 1; (斉衡元年)
Javanese calendar	751–752
Julian calendar	854; DCCCLIV
Korean calendar	3187
Minguo calendar	1058 before ROC; 民前1058年
Nanakshahi calendar	−614
Seleucid era	1165/1166 AG
Thai solar calendar	1396–1397
Tibetan calendar	阴水鸡年; (female Water-Rooster); 980 or 599 or −173; — to —; 阳木狗年; (male Wood-Dog); 981 or 600 or −172

Millennium:	1st millennium
Centuries:	8th century; 9th century ; 10th century;
Decades:	830s; 840s; 850s ; 860s; 870s;
Years:	851; 852; 853; 854 ; 855; 856; 857;

Year 854 (DCCCLIV) was a common year starting on Monday (link will display the full calendar) of the Julian calendar.

Events

Emperor Lothair I meets his (half) brothers Louis the German and Charles the Bald in Attigny (Ardennes) for the third time to continue the system of "con-fraternal government".
The Viking chieftains Rorik and Godfrid Haraldsson return to Demark to gain power after the death of king Horik I. During a civil war they are forced to go back to Friesland.^[1]

King Æthelwulf of Wessex sends his two youngest sons Alfred and Æthelred on a pilgrimage to Rome.^[2]
King Æthelweard of East Anglia dies and is succeeded by his 14-year-old son Edmund ("the Martyr").^[3]
King Cyngen of Powys makes the first pilgrimage to Rome of a Welsh ruler.
Viking chieftain Ubba winters in Milford Haven (Wales) with 23 ships.^[4]