321

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This article is about the year 321. For the number, see 321 (number). For the game show, see 3-2-1.
Millennium: 1st millennium
Centuries: 3rd century4th century5th century
Decades: 290s  300s  310s  – 320s –  330s  340s  350s
Years: 318 319 320321322 323 324
321 by topic
Politics
State leadersSovereign states
Birth and death categories
BirthsDeaths
Establishment and disestablishment categories
EstablishmentsDisestablishments
321 in other calendars
Gregorian calendar 321
CCCXXI
Ab urbe condita 1074
Armenian calendar N/A
Assyrian calendar 5071
Bahá'í calendar −1523 – −1522
Bengali calendar −272
Berber calendar 1271
English Regnal year N/A
Buddhist calendar 865
Burmese calendar −317
Byzantine calendar 5829–5830
Chinese calendar 庚辰(Metal Dragon)
3017 or 2957
    — to —
辛巳年 (Metal Snake)
3018 or 2958
Coptic calendar 37–38
Discordian calendar 1487
Ethiopian calendar 313–314
Hebrew calendar 4081–4082
Hindu calendars
 - Vikram Samvat 377–378
 - Shaka Samvat 243–244
 - Kali Yuga 3422–3423
Holocene calendar 10321
Igbo calendar −679 – −678
Iranian calendar 301 BP – 300 BP
Islamic calendar 310 BH – 309 BH
Japanese calendar N/A
Juche calendar N/A
Julian calendar 321
CCCXXI
Korean calendar 2654
Minguo calendar 1591 before ROC
民前1591年
Thai solar calendar 864

Year 321 (CCCXXI) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Crispus and Constantinus (or, less frequently, year 1074 Ab urbe condita). The denomination 321 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

Events[edit]

By topic[edit]

Roman Empire[edit]

Asia[edit]

By topic[edit]

Arts and sciences[edit]

Food and drink[edit]

  • Constantine I assigns convicts to grind Rome's flour in a move to hold back the rising price of food in an empire whose population has shrunk as a result of plague (see 309 AD).

Religion[edit]


Births[edit]

Deaths[edit]

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