886

886 in various calendars
Gregorian calendar	886; DCCCLXXXVI
Ab urbe condita	1639
Armenian calendar	335; ԹՎ ՅԼԵ
Assyrian calendar	5636
Balinese saka calendar	807–808
Bengali calendar	293
Berber calendar	1836
Buddhist calendar	1430
Burmese calendar	248
Byzantine calendar	6394–6395
Chinese calendar	乙巳年 (Wood Snake); 3583 or 3376; — to —; 丙午年 (Fire Horse); 3584 or 3377
Coptic calendar	602–603
Discordian calendar	2052
Ethiopian calendar	878–879
Hebrew calendar	4646–4647
Hindu calendars
- Vikram Samvat	942–943
- Shaka Samvat	807–808
- Kali Yuga	3986–3987
Holocene calendar	10886
Iranian calendar	264–265
Islamic calendar	272–273
Japanese calendar	Ninna 2; (仁和２年)
Javanese calendar	784–785
Julian calendar	886; DCCCLXXXVI
Korean calendar	3219
Minguo calendar	1026 before ROC; 民前1026年
Nanakshahi calendar	−582
Seleucid era	1197/1198 AG
Thai solar calendar	1428–1429
Tibetan calendar	阴木蛇年; (female Wood-Snake); 1012 or 631 or −141; — to —; 阳火马年; (male Fire-Horse); 1013 or 632 or −140

Millennium:	1st millennium
Centuries:	8th century; 9th century ; 10th century;
Decades:	860s; 870s; 880s ; 890s; 900s;
Years:	883; 884; 885; 886 ; 887; 888; 889;

Events

March – A wide-ranging conspiracy against Emperor Basil I, led by John Kourkouas, is uncovered.^[1]
August 29 – Emperor Basil I the Macedonian dies from a fever, contracted after a hunting accident. He is succeeded by the 19-year-old Leo VI, a son of former emperor Michael III, as sole ruler (basileus) of the Byzantine Empire. After his coronation Leo reburies the remains of his father with great ceremony in the imperial mausoleum, within the Church of the Holy Apostles in Constantinople.^[2]

October – Siege of Paris: Count Odo slips through Viking-controlled territory, to ask the king of West Francia Charles the Fat for support. He returns with a relief force, and reaches safety within the walls. Charles arrives later with a large army, and establishes a camp at Montmartre. After negotiations he promises the Vikings tribute (Danegeld) worth 700 Livres (equivalent to 257kg of silver), and allows them to sail up the River Seine, to over-winter in Burgundy.

King Alfred the Great of Wessex recaptures London from the Danish Vikings, and renames it Lundenburh. Slightly upstream from London Bridge, he builds a small harbor called Queenhithe. Alfred hands the town over to his son-in-law Æthelred, lord of Mercia. A street system is planned out in the town, with boundaries of 1,100 yards from east to west, and around 330 yards from north to south.^[3]

King Alfred receives the formal submission of all of the citizens of England not under Viking rule, and adopts the title King of the Anglo-Saxons.

December – Emperor Leo VI dismisses Patriarch Photius I, who has been his tutor, and replaces him with his own brother Stephen I.^[4]
The Glagolitic alphabet, devised by Cyril and Methodius, missionaries from Constantinople, is adopted in the Bulgarian Empire.
Boris I, ruler (khan) of the Bulgarian Empire, establishes the Preslav and Ohrid Literary Schools.

^ Lilie, Ralph-Johannes; Ludwig, Claudia; Pratsch, Thomas; Zielke, Beate (2013). "Ioannes Kurkuas (#22824)". Prosopographie der mittelbyzantinischen Zeit Online. Berlin-Brandenburgische Akademie der Wissenschaften. Nach Vorarbeiten F. Winkelmanns erstellt (in German). Berlin and Boston: De Gruyter.
^ Finlay, p. 307.
^ Paul Hill (2009). The Viking Wars of Alfred the Great, p. 108. ISBN 978-1-59416-087-5.
^ Norwich, p. 104.