257

This article is about the year 257. For the number, see 257 (number).
Millennium: 1st millennium
Centuries: 2nd century3rd century4th century
Decades: 220s  230s  240s 250s 260s  270s  280s
Years: 254 255 256257258 259 260
257 by topic
Politics
State leaders – Sovereign states
Birth and death categories
Births – Deaths
Establishment and disestablishment categories
Establishments – Disestablishments
257 in other calendars
Gregorian calendar257
CCLVII
Ab urbe condita1010
Assyrian calendar5007
Bengali calendar−336
Berber calendar1207
Buddhist calendar801
Burmese calendar−381
Byzantine calendar5765–5766
Chinese calendar丙子(Fire Rat)
2953 or 2893
     to 
丁丑年 (Fire Ox)
2954 or 2894
Coptic calendar−27 – −26
Discordian calendar1423
Ethiopian calendar249–250
Hebrew calendar4017–4018
Hindu calendars
 - Vikram Samvat313–314
 - Shaka Samvat179–180
 - Kali Yuga3358–3359
Holocene calendar10257
Iranian calendar365 BP – 364 BP
Islamic calendar376 BH – 375 BH
Julian calendar257
CCLVII
Korean calendar2590
Minguo calendar1655 before ROC
民前1655年
Seleucid era568/569 AG
Thai solar calendar799–800
Wikimedia Commons has media related to 257.
Golden Roman helmet found near Sirmium (Serbia)

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.

Events

By place

Roman Empire

By topic

Religion

Births

Deaths

References