991

Events 

 By place 
 Europe 
 Battle of Maldon: The Anglo-Saxons are beaten by Viking invaders led by Olaf Tryggvason, later Olaf I of Norway.
 Sweyn I of Denmark gets his throne back.

 Births 
 Sigurd Hlodvirsson, Earl of Orkney
 Abdullah Yousef, of Kuwait

 Deaths 
 Theophanu, empress, mother of Otto III (b. 956)
 Emperor En'yū, emperor of Japan (b. 959)

 References