|Covid-19|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, route 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.
St. Cecilia's Church (Cäcilienkirche) is founded as a college for women. It is now kept at the Schnütgen Museum in Cologne.
Conrad I, king of the East Frankish Kingdom (approximate date)
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
Year 881 (DCCCLXXXI) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar.