331 BC

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Millennium: 1st millennium BC
Centuries: 5th century BC4th century BC3rd century BC
Decades: 360s BC  350s BC  340s BC  – 330s BC –  320s BC  310s BC  300s BC
Years: 334 BC 333 BC 332 BC331 BC330 BC 329 BC 328 BC
331 BC in other calendars
Gregorian calendar 331 BC
Ab urbe condita 423
Ancient Egypt era XXXII dynasty, 2
- Pharaoh Alexander the Great, 2
Ancient Greek era 112th Olympiad, year 2
Assyrian calendar 4420
Bengali calendar −923
Berber calendar 620
Buddhist calendar 214
Burmese calendar −968
Byzantine calendar 5178–5179
Chinese calendar 己丑(Earth Ox)
2366 or 2306
    — to —
庚寅年 (Metal Tiger)
2367 or 2307
Coptic calendar −614 – −613
Discordian calendar 836
Ethiopian calendar −338 – −337
Hebrew calendar 3430–3431
Hindu calendars
 - Vikram Samvat −274 – −273
 - Shaka Samvat N/A
 - Kali Yuga 2771–2772
Holocene calendar 9670
Iranian calendar 952 BP – 951 BP
Islamic calendar 981 BH – 980 BH
Julian calendar N/A
Korean calendar 2003
Minguo calendar 2242 before ROC
Thai solar calendar 212–213
The Battle of Gaugamela

Year 331 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Consulship of Potitus and Marcellus (or, less frequently, year 423 Ab urbe condita). The denomination 331 BC 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.


By place[edit]



  • While Alexander is fighting in Asia, Agis III of Sparta, profiting from the Macedonian king's absence from Greece, leads some of the Greek cities in a revolt. With Persian money and 8,000 Greek mercenaries, he holds Crete against Macedonian forces. In the Peloponnesus he routes a force under the Macedonian general Coragus and, although Athens stays neutral, he is joined by Elis, Achaea (except Pellene) and Arcadia, with the exception of Megalopolis, the staunchly anti-Spartan capital of Arcadia, which Agis III's forces besiege.


Roman Republic[edit]

  • The Gallic tribe of the Senones and the Romans conclude a peace and enter upon a period of friendly relations which lasts the rest of the century.