991
| Years: 987 988 989 990 - 991 - 992 993 994 995 | |
| Decades: 960s 970s 980s - 990s - 1000s 1010s 1020s | |
| Centuries: 9th century - 10th century - 11th century | |
Events
- Battle of Maldon
- Sweyn I of Denmark recovers his throne
Deaths
- Theophanu, empress, mother of Otto III
- Emperor En'yu of Japan