| Millennium: | 2nd millennium |
|---|---|
| Centuries: | 13th century – 14th century – 15th century |
| Decades: | 1290s 1300s 1310s – 1320s – 1330s 1340s 1350s |
| Years: | 1318 1319 1320 – 1321 – 1322 1323 1324 |
| 1321 in topic: |
| Subjects: Archaeology – Architecture – |
| Art – Literature – Music – Science |
| Leaders: State leaders – Colonial governors |
| Category: Establishments – Disestablishments |
| Births – Deaths – Works |
Year 1321 (MCCCXXI) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar.
| Gregorian calendar | 1321 MCCCXXI |
| Ab urbe condita | 2074 |
| Armenian calendar | 770 ԹՎ ՉՀ |
| Bahá'í calendar | -523 – -522 |
| Bengali calendar | 728 |
| Berber calendar | 2271 |
| Buddhist calendar | 1865 |
| Burmese calendar | 683 |
| Byzantine calendar | 6829 – 6830 |
| Chinese calendar | 庚申年十二月初三日 (3957/4017-12-3) — to —
辛酉年十二月十二日(3958/4018-12-12) |
| Coptic calendar | 1037 – 1038 |
| Ethiopian calendar | 1313 – 1314 |
| Hebrew calendar | 5081 – 5082 |
| Hindu calendars | |
| - Bikram Samwat | 1377 – 1378 |
| - Shaka Samvat | 1243 – 1244 |
| - Kali Yuga | 4422 – 4423 |
| Holocene calendar | 11321 |
| Iranian calendar | 699 – 700 |
| Islamic calendar | 720 – 721 |
| Japanese calendar | |
| Korean calendar | 3654 |
| Thai solar calendar | 1864 |