866
From Infogalactic: the planetary knowledge core
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| Millennium: | 1st millennium |
|---|---|
| Centuries: | 8th century – 9th century – 10th century |
| Decades: | 830s 840s 850s – 860s – 870s 880s 890s |
| Years: | 863 864 865 – 866 – 867 868 869 |
| 866 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 866 DCCCLXVI |
| Ab urbe condita | 1619 |
| Armenian calendar | 315 ԹՎ ՅԺԵ |
| Assyrian calendar | 5616 |
| Bengali calendar | 273 |
| Berber calendar | 1816 |
| Buddhist calendar | 1410 |
| Burmese calendar | 228 |
| Byzantine calendar | 6374–6375 |
| Chinese calendar | 乙酉年 (Wood Rooster) 3562 or 3502 — to — 丙戌年 (Fire Dog) 3563 or 3503 |
| Coptic calendar | 582–583 |
| Discordian calendar | 2032 |
| Ethiopian calendar | 858–859 |
| Hebrew calendar | 4626–4627 |
| Hindu calendars | |
| - Vikram Samvat | 922–923 |
| - Shaka Samvat | 788–789 |
| - Kali Yuga | 3967–3968 |
| Holocene calendar | 10866 |
| Iranian calendar | 244–245 |
| Islamic calendar | 251–252 |
| Japanese calendar | Jōgan 8 (貞観８年) |
| Julian calendar | 866 DCCCLXVI |
| Korean calendar | 3199 |
| Minguo calendar | 1046 before ROC 民前1046年 |
| Seleucid era | 1177/1178 AG |
| Thai solar calendar | 1408–1409 |
Year 866 (DCCCLXVI) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar.
Events
By place
Asia
- A Kharijite revolt against the Abbasid Caliphate begins in the Jazira, which will last for thirty years.
- Fujiwara no Yoshifusa becomes regent of Japan, starting the Fujiwara regentship.
Europe
- Alfonso III succeeds as king of Asturias.
- Louis II beats the Saracen invaders in Italy.
- Ivar the Boneless crosses over to England and beats and captures king Aella of Northumbria, thus avenging his father Ragnar Lodbrok.
- Ethelred succeeds as king of Wessex (or 865).
- A "great Viking army" captures York.
- Harold Fairhair (850–933) wins a decisive battle in his quest to become king of all of Norway.
By topic
Religion
- Pope Nicholas I forbids the use of torture in prosecutions for witchcraft.
Births
Deaths
- April 21 – Bardas, chief minister of the Byzantine Empire (murdered)
- May 27 – King Ordoño I of Asturias
- al-Mu'ayyad, Abbasid prince
- Linji Yixuan, Chinese monk of the Tang Dynasty who founded the Rinzai school of Buddhism
