Europe July 15 – Vladimir the Great dies at Berestove after a 35-year reign. He is succeeded by his son Sviatopolk I as Grand Prince of Kiev. Summer – King Cnut the Great of Denmark launches an invasion of Mercia and Northumbria in England. Emperor Henry II launches a German expedition against Duke Bolesław I the Brave. He invades Poland, but is stopped by Bolesław's forces at Krosno, on the Oder River. Earl Eric Haakonsson outlaws berserkers in Norway. Olaf Haraldsson declares himself King of Norway.
europe july 15 – vladimir the great dies at berestove after a 35-year reign he is succeeded by his son sviatopolk i as grand prince of kiev summer – king cnut the great of denmark launches an invasion of mercia and northumbria in england emperor henry ii launches a german expedition against duke bolesław i the brave he invades poland but is stopped by bolesław's forces at krosno on the oder river earl eric haakonsson outlaws berserkers in norway olaf haraldsson declares himself king of norway