257

Millennium:	1st millennium
Centuries:	2nd century 3rd century 4th century
Decades:	230s 240s 250s 260s 270s
Years:	254 255 256 257 258 259 260

257 in various calendars

Gregorian calendar	257 CCLVII
Ab urbe condita	1010
Assyrian calendar	5007
Balinese saka calendar	178–179
Bengali calendar	−336
Berber calendar	1207
Buddhist calendar	801
Burmese calendar	−381
Byzantine calendar	5765–5766
Chinese calendar	丙子年 (Fire Rat) 2953 or 2893     — to — 丁丑年 (Fire Ox) 2954 or 2894
Coptic calendar	−27 – −26
Discordian calendar	1423
Ethiopian calendar	249–250
Hebrew calendar	4017–4018
Hindu calendars
- Vikram Samvat	313–314
- Shaka Samvat	178–179
- Kali Yuga	3357–3358
Holocene calendar	10257
Iranian calendar	365 BP – 364 BP
Islamic calendar	376 BH – 375 BH
Javanese calendar	136–137
Julian calendar	257 CCLVII
Korean calendar	2590
Minguo calendar	1655 before ROC 民前1655年
Nanakshahi calendar	−1211
Seleucid era	568/569 AG
Thai solar calendar	799–800
Tibetan calendar	阳火鼠年 (male Fire-Rat) 383 or 2 or −770     — to — 阴火牛年 (female Fire-Ox) 384 or 3 or −769
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Year 257 (CCLVII) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Valerianus and Gallienus (or, less frequently, year 1010 Ab urbe condita). The denomination 257 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.

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