• February 14 - Pope Benedict VIII recognizes Henry of Bavaria as King of Germany
• July 29 - Basil II corners Bulgarian army and forces it to fight the Battle of Kleidion[?]. His savage treatment of 15,000 Bulgar prisoners gave him the surname of "Bulgaroktonos" or "Bulgar-slayer."
• Henry II of Germany crowned Henry I, Holy Roman Emperor by Pope Benedict VIII (ruled since 1003)
• Canute the Great returns to Denmark
• Battle of Clontarf; forces under Brian Boru defeat several allied Viking forces in Ireland, ending their power there but killing Brian in the process

Births

Deaths

• February 3 - Sweyn I, king of Denmark
• April 23 - Brian Boru, high king of Ireland during the Battle of Clontarf
• October 6-Samuil of Bulgaria, Tsar of Bulgaria