|Covid-19|Summer – Poppo II, duke of Thuringia (Central Germany), is deposed by King Arnulf of Carinthia. East Frankish forces and their Magyar (Hungarian) allies invade Great Moravia.
Vladimir, ruler (knyaz) of the Bulgarian Empire, signs a military alliance with Arnulf of Carinthia of the East Frankish Kingdom, this against the pro-Byzantine policy of his father.
Autumn – A Viking force with a fleet of 250 longships arrives at the river mouth of the settlement of Lympne (East Kent). They attack the small fortification (called Eorpeburnan).
Viking raiders (80 ships) under Hastein arrive in the Thames Estuary, and set up camp at Middleton. King Alfred the Great decides to position his army in the Wealden Forest.
April – Al-Mu'tadid, the de facto regent of the Abbasid Caliphate, removes his cousin Al-Mufawwad from succession, and becomes himself caliph after the death of Al-Mu'tamid.
May – Ibrahim II, Aghlabid emir of Ifriqiya, sends a large army to Palermo, to impose Arab authority from Kairouan. After an uprising, the Sicilians make a bid for independence.
Summer – The Persian nobility installs Isma'il ibn Ahmad, the former governor of Transoxiana, as ruler (emir) of the Samanid Empire, after the death of his brother Nasr I.
Former Silla general Gyeon Hwon seizes the cities of Wansanju and Mujinju, taking over the territory of Baekje. He wins the support of the people, and declares himself king.
March 30 – Shi Jingtang, founder of the Later Jin Dynasty (d. 942)
Ai (Li Zhou), emperor (puppet ruler) of the Tang Dynasty (d. 908)
Jing Yanguang, Chinese general and governor (d. 947)
Saadia Gaon, Jewish philosopher and exegete (or 882)
Wang Sitong, Chinese general and governor (d. 934)
Wang Yuanying, crown prince of Former Shu (d. 913)
Zhang, empress consort of Zhu Youzhen (d. 915)
October 9 – Al-Tirmidhi, Persian scholar and hadith compiler (b. 824)
October 15 – Al-Mu'tamid, Muslim caliph of the Abbasid Caliphate
Berengaudus, Frankish Benedictine monk (b. 840)
Bernard, illegitimate son of Charles the Fat (or 891)
Branimir, ruler (knyaz) of Croatia (approximate date)
Nasr I, Muslim emir of the Samanid Empire
Sun Ru, Chinese warlord and governor
Yang Shouliang, Chinese warlord and governor
Zhao Deyin, Chinese warlord and chancellor
Year 892 (DCCCXCII) was a leap year starting on Saturday (link will display the full calendar) of the Julian calendar.