321
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This article is about the year 321. For other uses, see 321 (number).
| Centuries: | 3rd century · 4th century · 5th century |
| Decades: | 290s 300s 310s 320s 330s 340s 350s |
| Years: | 318 319 320 321 322 323 324 |
| 321 by topic | |
| Politics | |
| State leaders - Sovereign states | |
| Birth and death categories | |
| Births - Deaths | |
| Establishment and disestablishment categories | |
| Establishments - Disestablishments | |
| Gregorian calendar | 321 CCCXXI |
| Ab urbe condita | 1074 |
| Armenian calendar | N/A |
| Bahá'í calendar | -1523 – -1522 |
| Berber calendar | 1271 |
| Buddhist calendar | 865 |
| Burmese calendar | -317 |
| Chinese calendar | 2957/3017-11-16 (庚辰年十一月十六日) — to —
2958/3018-11-26(辛巳年十一月廿六日) |
| Coptic calendar | 37 – 38 |
| Ethiopian calendar | 313 – 314 |
| Hebrew calendar | 4081 – 4082 |
| Hindu calendars | |
| - Vikram Samvat | 376 – 377 |
| - Shaka Samvat | 243 – 244 |
| - Kali Yuga | 3422 – 3423 |
| Holocene calendar | 10321 |
| Iranian calendar | 301 BP – 300 BP |
| Islamic calendar | 310 BH – 309 BH |
| Japanese calendar | |
| Korean calendar | 2654 |
| Thai solar calendar | 864 |
[edit] Events
[edit] By Topic
[edit] Roman Empire
- March 7 — Edict of Constantine I: The dies Solis Invicti (Sunday) is proclaimed as the day of rest: trade is forbidden; agriculture is allowed. [1]
[edit] By Topic
[edit] Arts and Sciences
[edit] Religion
- The Roman Catholic church is allowed to hold property.
- A synod in Alexandria condemns Arianism.
[edit] Births
- Valentinian I, Roman emperor
- Emperor Cheng of Jin
- Empress Du Lingyang
