231 BC

Years BC:	[[ BC|]] [[ BC|]] [[ BC|]] 231 BC [[ BC|]] [[ BC|]] [[ BC|]]
Centuries:	[[th century]] · [[th century]] · [[th century]]
Decades:	[[s]] [[s]] [[s]] [[s]] [[s]] [[s]] [[s]]
Years:	[[]] [[]] [[]] 231 BC [[]] [[]] [[]]

231 BC in various calendars

Gregorian calendar	231 BC CCXXXI BC
Ab urbe condita	523
Ancient Egypt era	XXXIII dynasty, 93
- Pharaoh	Ptolemy III Euergetes, 16
Ancient Greek era	137th Olympiad, year 2
Assyrian calendar	4520
Balinese saka calendar	N/A
Bengali calendar	−823
Berber calendar	720
Buddhist calendar	314
Burmese calendar	−868
Byzantine calendar	5278–5279
Chinese calendar	己巳年 (Earth Snake) 2467 or 2260     — to — 庚午年 (Metal Horse) 2468 or 2261
Coptic calendar	−514 – −513
Discordian calendar	936
Ethiopian calendar	−238 – −237
Hebrew calendar	3530–3531
Hindu calendars
- Vikram Samvat	−174 – −173
- Shaka Samvat	N/A
- Kali Yuga	2870–2871
Holocene calendar	9770
Iranian calendar	852 BP – 851 BP
Islamic calendar	878 BH – 877 BH
Javanese calendar	N/A
Julian calendar	N/A
Korean calendar	2103
Minguo calendar	2142 before ROC 民前2142年
Nanakshahi calendar	−1698
Seleucid era	81/82 AG
Thai solar calendar	312–313
Tibetan calendar	阴土蛇年 (female Earth-Snake) −104 or −485 or −1257     — to — 阳金马年 (male Iron-Horse) −103 or −484 or −1256

Events

By place

Rome

• The Romans send envoys to Massilia to negotiate with the Carthaginian Hamilcar.

Illyria

• King Agron dies, and the throne of Illyria is occupied by his wife Queen Teuta (Tefta), "the Catherine the Great of Illyria", who expels the Greeks from the Albanian coast and then launches pirate ships into the Ionian Sea, preying on Roman shipping.