878
| Millennium: | 1st millennium |
|---|---|
| Centuries: | 8th century – 9th century – 10th century |
| Decades: | 840s 850s 860s – 870s – 880s 890s 900s |
| Years: | 875 876 877 – 878 – 879 880 881 |
| 878 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 878 DCCCLXXVIII |
| Ab urbe condita | 1631 |
| Armenian calendar | 327 ԹՎ ՅԻԷ |
| Assyrian calendar | 5628 |
| Bengali calendar | 285 |
| Berber calendar | 1828 |
| Buddhist calendar | 1422 |
| Burmese calendar | 240 |
| Byzantine calendar | 6386–6387 |
| Chinese calendar | 丁酉年 (Fire Rooster) 3574 or 3514 — to — 戊戌年 (Earth Dog) 3575 or 3515 |
| Coptic calendar | 594–595 |
| Discordian calendar | 2044 |
| Ethiopian calendar | 870–871 |
| Hebrew calendar | 4638–4639 |
| Hindu calendars | |
| - Vikram Samvat | 934–935 |
| - Shaka Samvat | 800–801 |
| - Kali Yuga | 3979–3980 |
| Holocene calendar | 10878 |
| Iranian calendar | 256–257 |
| Islamic calendar | 264–265 |
| Japanese calendar | Gangyō 2 (元慶２年) |
| Julian calendar | 878 DCCCLXXVIII |
| Korean calendar | 3211 |
| Minguo calendar | 1034 before ROC 民前1034年 |
| Seleucid era | 1189/1190 AG |
| Thai solar calendar | 1420–1421 |
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Year 878 (DCCCLXXVIII) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar.
Events
By place
Europe
- Between May 6 and May 12 – Battle of Ethandun (probably either at Edington, Somerset, or Edington, Wiltshire): Alfred the Great of Wessex defeats the Danes of the Danelaw under Guthrum.
- May 21 – After a siege of eight months, Syracuse is captured by the Aghlabids of Ifriqiya.
- The Treaty of Wedmore divides England between the Anglo-Saxons and the Danes.
- Rhodri, the first King of Wales to be known as "the Great", is killed in battle.
- Alfonso III of Leon conquers Coimbra from the Umayyads.[1]
- The city of Belgrade is first mentioned.
- Eochu MacRunn and Girig MacDungal jointly succeed Aed I of Scotland.
By topic
Religion
- The excommunication of the later Pope Formosus is lifted.
Births
Deaths
- Aedh MacRunn, King of the Scots and Picts
- Rhodri Mawr, king of Wales
- December 31, Emperor Seiwa, Emperor of Japan from 858 to 876. (b. 850)