991
991 (CMXCI) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar.
| Millennium: | 1st millennium |
|---|---|
| Centuries: | 9th century – 10th century – 11th century |
| Decades: | 960s 970s 980s – 990s – 1000s 1010s 1020s |
| Years: | 988 989 990 – 991 – 992 993 994 |
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
Deaths
- Theophanu, empress, mother of Otto III (b. 956)
- Emperor En'yū, emperor of Japan (b. 959)
