291

Year 291 (CCXCI) was a common year starting on Thursday of the Julian calendar.

Millennium:	1st millennium
Centuries:	2nd century – 3rd century – 4th century
Decades:	260s  270s  280s  – 290s –  300s  310s  320s
Years:	288 289 290 – 291 – 292 293 294

291 in other calendars

Gregorian calendar	291 CCXCI
Ab urbe condita	1044
Assyrian calendar	5041
Balinese saka calendar	212–213
Bengali calendar	−302
Berber calendar	1241
Buddhist calendar	835
Burmese calendar	−347
Byzantine calendar	5799–5800
Chinese calendar	庚戌年 (Metal Dog) 2987 or 2927     — to — 辛亥年 (Metal Pig) 2988 or 2928
Coptic calendar	7–8
Discordian calendar	1457
Ethiopian calendar	283–284
Hebrew calendar	4051–4052
Hindu calendars
- Vikram Samvat	347–348
- Shaka Samvat	212–213
- Kali Yuga	3391–3392
Holocene calendar	10291
Iranian calendar	331 BP – 330 BP
Islamic calendar	341 BH – 340 BH
Javanese calendar	171–172
Julian calendar	291 CCXCI
Korean calendar	2624
Minguo calendar	1621 before ROC 民前1621年
Nanakshahi calendar	−1177
Seleucid era	602/603 AG
Thai solar calendar	833–834
Tibetan calendar	阳金狗年 (male Iron-Dog) 417 or 36 or −736     — to — 阴金猪年 (female Iron-Pig) 418 or 37 or −735

Hunping jar of the Jin Dynasty

Events

By place

Roman Empire

• Emperor Diocletian signs peace treaties with the kingdoms of Aksum and Nubia.

China

• War of the Eight Princes: After the death of Emperor Sima Yan a civil war starts among the princes and dukes of the Jin Dynasty.

Births

• Li Xiu, female general during the Jin Dynasty
• Saint Agnes, Christian martyress (d. c. 304)
• Saint Hilarion, anchorite and saint (d. 371)
• Saint Philomena, Christian martyress (d. c. 304)

Deaths

• Sima Liang, regent during the rule of Sima Yan
• Sima Wei, prince during the Jin Dynasty (b. 271)
• Wei Guan, general of the Kingdom of Wei (b. 220)
• Wen Yang, general of the Kingdom of Wei (b. 238)
• Yang Jun, official during the rule of Sima Yan