231

231 in other calendars
Gregorian calendar	231; CCXXXI
Ab urbe condita	984
Assyrian calendar	4981
Balinese saka calendar	152–153
Bengali calendar	−362
Berber calendar	1181
Buddhist calendar	775
Burmese calendar	−407
Byzantine calendar	5739–5740
Chinese calendar	庚戌年 (Metal Dog); 2927 or 2867; — to —; 辛亥年 (Metal Pig); 2928 or 2868
Coptic calendar	−53 – −52
Discordian calendar	1397
Ethiopian calendar	223–224
Hebrew calendar	3991–3992
Hindu calendars
- Vikram Samvat	287–288
- Shaka Samvat	152–153
- Kali Yuga	3331–3332
Holocene calendar	10231
Iranian calendar	391 BP – 390 BP
Islamic calendar	403 BH – 402 BH
Javanese calendar	109–110
Julian calendar	231; CCXXXI
Korean calendar	2564
Minguo calendar	1681 before ROC; 民前1681年
Nanakshahi calendar	−1237
Seleucid era	542/543 AG
Thai solar calendar	773–774
Tibetan calendar	ལྕགས་ཕོ་ཁྱི་ལོ་; (male Iron-Dog); 357 or −24 or −796; — to —; ལྕགས་མོ་ཕག་ལོ་; (female Iron-Boar); 358 or −23 or −795

231 (CCXXXI) was a common year starting on Saturday of the Julian calendar.

Events

Zhuge Liang starts the fourth of his Northern Expeditions against the state of Cao Wei.

Origen, disciple of Ammonius Saccas, founder of Neoplatonism, is sent away to Caesarea.

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2nd century 3rd century 4th century
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210s 220s 230s 240s 250s
Years
228 229 230 231 232 233 234

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