266

This article is about the year 266. For the number, see 266 (number). For the locomotive, see 2-6-6.

Year 266 (CCLXVI) was a common year starting on Monday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Gallienus and Sabinillus (or, less frequently, year 1019 Ab urbe condita). The denomination 266 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.

Millennium:	1st millennium
Centuries:	2nd century 3rd century 4th century
Decades:	240s 250s 260s 270s 280s
Years:	263 264 265 266 267 268 269

266 in various calendars

Gregorian calendar	266 CCLXVI
Ab urbe condita	1019
Assyrian calendar	5016
Balinese saka calendar	187–188
Bengali calendar	−327
Berber calendar	1216
Buddhist calendar	810
Burmese calendar	−372
Byzantine calendar	5774–5775
Chinese calendar	乙酉年 (Wood Rooster) 2963 or 2756     — to — 丙戌年 (Fire Dog) 2964 or 2757
Coptic calendar	−18 – −17
Discordian calendar	1432
Ethiopian calendar	258–259
Hebrew calendar	4026–4027
Hindu calendars
- Vikram Samvat	322–323
- Shaka Samvat	187–188
- Kali Yuga	3366–3367
Holocene calendar	10266
Iranian calendar	356 BP – 355 BP
Islamic calendar	367 BH – 366 BH
Javanese calendar	145–146
Julian calendar	266 CCLXVI
Korean calendar	2599
Minguo calendar	1646 before ROC 民前1646年
Nanakshahi calendar	−1202
Seleucid era	577/578 AG
Thai solar calendar	808–809
Tibetan calendar	阴木鸡年 (female Wood-Rooster) 392 or 11 or −761     — to — 阳火狗年 (male Fire-Dog) 393 or 12 or −760

Odaenathus (totius Orientis imperator)

Events

By place

Roman Empire

• King Odaenathus of Palmyra invades Persia to conquer the capital, Ctesiphon, and twice comes as far as the walls of the Persian capital, but fails to take it. After his victories in the East, he pronounces himself with the title "king of kings".
• A powerful tropical volcanic eruption around this year brings a below-average flood of the Nile next year.

Ireland

• The rule of High King Cormac mac Airt ends (approximate date).

Asia

• February 4 – Sima Yan, regent of the Chinese state of Cao Wei, forces the last Cao Wei emperor Cao Huan to abdicate in his favour. The Cao Wei state's existence comes to an end. Sima Yan establishes the Jin Dynasty, and becomes its first emperor on 8 February, and is historically known as "Wu of Jin". He establishes his capital at Luoyang, and gives his male relatives independent military commands throughout his empire.

Births

• Galeria Valeria, Roman empress and wife of Galerius (d. 315)
• Wang Dun (or Chuzhong), Chinese general and warlord (d. 324)
• Zu Ti (or Shizhi), Chinese general and adviser (d. 321)

Deaths

• Wang Chen (or Chudao), Chinese general and politician
• Wang Fan, Chinese astronomer and mathematician (b. 228)