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Events

Spring and Summer - The Hungarians make an alliance with the Pechenegs, and fight their way through Thrace to Constantinople.
Battle of W.l.n.d.r: The Hungarians and Pechenegs kill Constantinople's inhabitants, inflict severe damage on the countryside, and defeat both the Byzantine Empire and Bulgaria, forcing them to pay tribute. Emperor Romanos I signs a peace treaty with the Hungarians.

King Henry I pacifies the territories to the north, where the Danish Vikings have been harrying the Frisians by sea. He defeats the Danes petty King Gnupa, and conquers Hedeby.
Summer - Caliph Abd-al-Rahman III invades Navarra and forces Queen Toda to submit to him. Her son the 15-year-old King García Sánchez I becomes a vassal of the Caliphate of Córdoba.
Haakon I, a son of the late King Harald Fairhair, once again reunites the kingdom after he has deposed his half-brother Eric Bloodaxe. Haakon is installed as king of Norway (872–1397)|Norway].
The Eldgjá volcanic eruption is the largest basalt flood in history.

April 24 - Abbasid caliph al-Qahir is deposed and blinded; he is succeeded by his nephew ar-Radi.
Summer - Ali ibn Buya, a Samanid governor, takes advantage of the anarchy in Persia and conquers Fars. He founds the Buyid Dynasty, and makes Shiraz his capital. Ali seeks the recognition of the Abbasid caliph Ar-Radi, who confirms him later as his viceroy.

March 16 - Meng Zhixiang, a military governor, declares himself emperor and establishes Later Shu as a new Chinese state, independent of Later Tang. He dies after a short-lived five-month reign and is succeeded by his son Meng Chang.
Goryeo forces push the army of Hubaekje back into its heartland and defeat them finally at Hongseong.