| Millennium: | 1st millennium |
|---|---|
| Centuries: | 9th century – 10th century – 11th century |
| Decades: | 960s 970s 980s – 990s – 1000s 1010s 1020s |
| Years: | 987 988 989 – 990 – 991 992 993 |
| 990 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 990 CMXC |
| Ab urbe condita | 1743 |
| Armenian calendar | 439 ԹՎ ՆԼԹ |
| Bahá'í calendar | -854 – -853 |
| Bengali calendar | 397 |
| Berber calendar | 1940 |
| Buddhist calendar | 1534 |
| Burmese calendar | 352 |
| Byzantine calendar | 6498 – 6499 |
| Chinese calendar | 己丑年十二月初二日 (3626/3686-12-2) — to —
庚寅年十二月十二日(3627/3687-12-12) |
| Coptic calendar | 706 – 707 |
| Ethiopian calendar | 982 – 983 |
| Hebrew calendar | 4750 – 4751 |
| Hindu calendars | |
| - Bikram Samwat | 1046 – 1047 |
| - Shaka Samvat | 912 – 913 |
| - Kali Yuga | 4091 – 4092 |
| Holocene calendar | 10990 |
| Iranian calendar | 368 – 369 |
| Islamic calendar | 379 – 380 |
| Japanese calendar | |
| Korean calendar | 3323 |
| Thai solar calendar | 1533 |