931
| Millennium: | 1st millennium |
|---|---|
| Centuries: | 9th century – 10th century – 11th century |
| Decades: | 900s 910s 920s – 930s – 940s 950s 960s |
| Years: | 928 929 930 – 931 – 932 933 934 |
| Gregorian calendar | 931 CMXXXI |
| Ab urbe condita | 1684 |
| Armenian calendar | 380 ԹՎ ՅՁ |
| Assyrian calendar | 5681 |
| Balinese saka calendar | 852–853 |
| Bengali calendar | 338 |
| Berber calendar | 1881 |
| Buddhist calendar | 1475 |
| Burmese calendar | 293 |
| Byzantine calendar | 6439–6440 |
| Chinese calendar | 庚寅年 (Metal Tiger) 3627 or 3567 — to — 辛卯年 (Metal Rabbit) 3628 or 3568 |
| Coptic calendar | 647–648 |
| Discordian calendar | 2097 |
| Ethiopian calendar | 923–924 |
| Hebrew calendar | 4691–4692 |
| Hindu calendars | |
| - Vikram Samvat | 987–988 |
| - Shaka Samvat | 852–853 |
| - Kali Yuga | 4031–4032 |
| Holocene calendar | 10931 |
| Iranian calendar | 309–310 |
| Islamic calendar | 318–319 |
| Japanese calendar | Enchō 9 / Jōhei 1 (承平元年) |
| Javanese calendar | 830–831 |
| Julian calendar | 931 CMXXXI |
| Korean calendar | 3264 |
| Minguo calendar | 981 before ROC 民前981年 |
| Nanakshahi calendar | −537 |
| Seleucid era | 1242/1243 AG |
| Thai solar calendar | 1473–1474 |
| Tibetan calendar | 阳金虎年 (male Iron-Tiger) 1057 or 676 or −96 — to — 阴金兔年 (female Iron-Rabbit) 1058 or 677 or −95 |
931 was a common year.
Events
- Ramiro II of León becomes king of Kingdom of León.
- Eric Bloodaxe becomes the second king of Norway.
- March – Pope John XI succeeds Pope Stephen VII as the 125th pope.
Births
- Adelaide of Italy, wife of Otto I, Holy Roman Emperor
- Emperor Muzong of Liao
Deaths
- Emperor Uda of Japan
- King Harald I of Norway