971 - Svyatoslav was defeated by Byzantines

Russia
Svyatoslav sacked Itil and permanently destroyed Khazar power in July he had abandoned an attempt to conquer Bulgaria after being defeated by John Tzimisces and the Byzantines.
Wales
King Magnus Haraldsson (Maccus mac Arailt), ruler of Man and Limerick, lead an attack on the monastic house of Penmon in Anglesey.