14th February » Pope Benedict VIII crowns Henry II, Holy Roman Emperor or Henry of Bavaria, Monarchy e.g King of Germany and of Italy, as Holy Roman Emperor.
23rd April » Battle of Clontarf: Brian Boru defeats Viking invaders, but is killed in battle.
29th July » Byzantine–Bulgarian wars: Battle of Kleidion List of Byzantine emperors named Byzantine emperor Basil II inflicts a decisive defeat on the Bulgarian army, and his subsequent treatment of 15,000 prisoners reportedly causes Samuel of Bulgaria named Tsar Sam