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331 in various calendars
Gregorian calendar	331; CCCXXXI
Ab urbe condita	1084
Assyrian calendar	5081
Balinese saka calendar	252–253
Bengali calendar	−262
Berber calendar	1281
Buddhist calendar	875
Burmese calendar	−307
Byzantine calendar	5839–5840
Chinese calendar	庚寅年 (Metal Tiger); 3028 or 2821; — to —; 辛卯年 (Metal Rabbit); 3029 or 2822
Coptic calendar	47–48
Discordian calendar	1497
Ethiopian calendar	323–324
Hebrew calendar	4091–4092
Hindu calendars
- Vikram Samvat	387–388
- Shaka Samvat	252–253
- Kali Yuga	3431–3432
Holocene calendar	10331
Iranian calendar	291 BP – 290 BP
Islamic calendar	300 BH – 299 BH
Javanese calendar	212–213
Julian calendar	331; CCCXXXI
Korean calendar	2664
Minguo calendar	1581 before ROC; 民前1581年
Nanakshahi calendar	−1137
Seleucid era	642/643 AG
Thai solar calendar	873–874
Tibetan calendar	阳金虎年; (male Iron-Tiger); 457 or 76 or −696; — to —; 阴金兔年; (female Iron-Rabbit); 458 or 77 or −695

Millennium:	1st millennium
Centuries:	3rd century; 4th century ; 5th century;
Decades:	310s; 320s; 330s ; 340s; 350s;
Years:	328; 329; 330; 331 ; 332; 333; 334;

Year 331 (CCCXXXI) was a common year starting on Friday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Bassus and Ablabius (or, less frequently, year 1084 Ab urbe condita). The denomination 331 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

By place

Roman Empire

Emperor Constantine the Great vigorously promotes Christianity, confiscating the property and valuables of a number of pagan temples throughout the Roman Empire.^[1]
Constantine I dedicates the Church of the Holy Apostles in Constantinople.
Constantine I promulgates a law against divorce.^[2]

Asia

Gogugwon becomes ruler of the Korean kingdom of Goguryeo.^[3]

By topic

Art and Science

Eusebius of Caesarea writes the Onomasticon.

Religion

Fifty Bibles of Constantine commissioned for use in Constantinople.
Gregory the Illuminator withdraws to a small sanctuary in the Daranali province (Armenia).

Births

Jovian, Roman consul and emperor (d. 364)
(or 332) Julian the Apostate, Roman emperor (d. 363)^[4]
Yao Chang, Chinese emperor of the Qiang state (d. 394)
Yao Xiang (or Jingguo), Chinese warlord (d. 357)

Deaths

Gregory the Illuminator, official head of the Armenian Apostolic Church
Micheon of Goguryeo, Korean ruler of Goguryeo^[3]

References

^ Lenski, Noel (January 15, 2016). Constantine and the Cities: Imperial Authority and Civic Politics. Philadelphia: University of Pennsylvania Press. p. 147. ISBN 978-0-8122-9223-7.
^ Bardill, Jonathan (2012). Constantine, Divine Emperor of the Christian Golden Age. Cambridge University Press. p. 290. ISBN 978-0-521-76423-0.
^ ^a ^b "List of Rulers of Korea". metmuseum.org. Retrieved April 19, 2019.
^ Kopff, E Christian; Perowne, Stewart Henry. "Julian". Encyclopædia Britannica. Retrieved February 24, 2024.

[1] Lenski, Noel (January 15, 2016). Constantine and the Cities: Imperial Authority and Civic Politics. Philadelphia: University of Pennsylvania Press. p. 147. ISBN 978-0-8122-9223-7.

[2] Bardill, Jonathan (2012). Constantine, Divine Emperor of the Christian Golden Age. Cambridge University Press. p. 290. ISBN 978-0-521-76423-0.

[met-3] "List of Rulers of Korea". metmuseum.org. Retrieved April 19, 2019.

[4] Kopff, E Christian; Perowne, Stewart Henry. "Julian". Encyclopædia Britannica. Retrieved February 24, 2024.

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