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| Millennium: | 2nd millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 1331 by topic |
|---|
| Leaders |
| Birth and death categories |
| Births – Deaths |
| Establishments and disestablishments categories |
| Establishments – Disestablishments |
| Art and literature |
| 1331 in poetry |
| Gregorian calendar | 1331 MCCCXXXI |
| Ab urbe condita | 2084 |
| Armenian calendar | 780 ԹՎ ՉՁ |
| Assyrian calendar | 6081 |
| Balinese saka calendar | 1252–1253 |
| Bengali calendar | 738 |
| Berber calendar | 2281 |
| English Regnal year | 4 Edw. 3 – 5 Edw. 3 |
| Buddhist calendar | 1875 |
| Burmese calendar | 693 |
| Byzantine calendar | 6839–6840 |
| Chinese calendar | 庚午年 (Metal Horse) 4028 or 3821 — to — 辛未年 (Metal Goat) 4029 or 3822 |
| Coptic calendar | 1047–1048 |
| Discordian calendar | 2497 |
| Ethiopian calendar | 1323–1324 |
| Hebrew calendar | 5091–5092 |
| Hindu calendars | |
| - Vikram Samvat | 1387–1388 |
| - Shaka Samvat | 1252–1253 |
| - Kali Yuga | 4431–4432 |
| Holocene calendar | 11331 |
| Igbo calendar | 331–332 |
| Iranian calendar | 709–710 |
| Islamic calendar | 731–732 |
| Japanese calendar | Gentoku 3 / Genkō 1 (元弘元年) |
| Javanese calendar | 1243–1244 |
| Julian calendar | 1331 MCCCXXXI |
| Korean calendar | 3664 |
| Minguo calendar | 581 before ROC 民前581年 |
| Nanakshahi calendar | −137 |
| Thai solar calendar | 1873–1874 |
| Tibetan calendar | 阳金马年 (male Iron-Horse) 1457 or 1076 or 304 — to — 阴金羊年 (female Iron-Goat) 1458 or 1077 or 305 |
Year 1331 (MCCCXXXI) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar.