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|881 by topic|
|Ab urbe condita||1634|
|Balinese saka calendar||802–803|
|Chinese calendar||庚子年 (Metal Rat)|
3577 or 3517
— to —
辛丑年 (Metal Ox)
3578 or 3518
|- Vikram Samvat||937–938|
|- Shaka Samvat||802–803|
|- Kali Yuga||3981–3982|
|Japanese calendar||Gangyō 5|
|Minguo calendar||1031 before ROC|
|Seleucid era||1192/1193 AG|
|Thai solar calendar||1423–1424|
1007 or 626 or −146
— to —
1008 or 627 or −145
Year 881 (DCCCLXXXI) was a common year starting on Sunday of the Julian calendar.
- February 12 – King Charles the Fat, the third son of the late Louis the German, is crowned as Holy Roman Emperor by Pope John VIII at Rome.
- August 3 – Battle of Saucourt-en-Vimeu: The West Frankish kings Louis III, and his brother Carloman II, rout Viking raiders (near Abbeville).
- Battle of the Conwy: King Anarawd of Gwynedd (Wales) initiates a revenge attack on the Mercian armies, and defeats them on the River Conwy.
- Anarawd, and his brothers Cadell and Merfyn, begin extensive military campaigns to quell resistance in Powys and Seisyllwg (approximate date).
- Zanj Rebellion: Abbasid general Al-Muwaffaq lays siege to the Zanj capital of Mukhtara, using his base on the opposite side of the River Tigris.
- Bakong, the first temple mountain of sandstone, is constructed by rulers of the Khmer Empire (modern Cambodia) at Angkor.
- 881 Acre earthquake. It took place in the vicinity of Acre. Alexandria was reportedly affected by the same earthquake.
- St. Cecilia's Church (Cäcilienkirche) is founded as a college for women. It is now home of the Schnütgen Museum in Cologne.
- Conrad I, king of the East Frankish Kingdom (approximate date)
- Hugh of Arles, king of Italy and Lower Burgundy (or 880)
- Liu Churang, Chinese general (d. 943)
- December 7 – Anspert, archbishop of Milan
- Bárid mac Ímair, king of Dublin
- Cui Hang, chancellor of the Tang Dynasty
- David I, prince of Iberia (Georgia)
- Gabriel, prince of Kakheti (Georgia)
- Guaifer, duke of Benevento
- John I, Frankish abbot (approximate date)
- Liu Ye, chancellor of the Tang Dynasty
- Lu Guimeng, Chinese poet
- Odo I, bishop of Beauvais
- Orso I, doge of Venice
- Radi Abdullah, Muslim tenth Imam
- Zhang Zhifang, Chinese general
- ^ Antonopoulos, 1980
- Antonopoulos, J. (1980), Data from investigation of seismic Sea waves events in the Eastern Mediterranean from 500 to 1000 A.D., Annals of Geophysics