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250 in various calendars
Gregorian calendar	250; CCL
Ab urbe condita	1003
Assyrian calendar	5000
Balinese saka calendar	171–172
Bengali calendar	−344 – −343
Berber calendar	1200
Buddhist calendar	794
Burmese calendar	−388
Byzantine calendar	5758–5759
Chinese calendar	己巳年 (Earth Snake); 2947 or 2740; — to —; 庚午年 (Metal Horse); 2948 or 2741
Coptic calendar	−34 – −33
Discordian calendar	1416
Ethiopian calendar	242–243
Hebrew calendar	4010–4011
Hindu calendars
- Vikram Samvat	306–307
- Shaka Samvat	171–172
- Kali Yuga	3350–3351
Holocene calendar	10250
Iranian calendar	372 BP – 371 BP
Islamic calendar	383 BH – 382 BH
Javanese calendar	128–129
Julian calendar	250; CCL
Korean calendar	2583
Minguo calendar	1662 before ROC; 民前1662年
Nanakshahi calendar	−1218
Seleucid era	561/562 AG
Thai solar calendar	792–793
Tibetan calendar	阴土蛇年; (female Earth-Snake); 376 or −5 or −777; — to —; 阳金马年; (male Iron-Horse); 377 or −4 or −776

Millennium:	1st millennium
Centuries:	2nd century; 3rd century ; 4th century;
Decades:	230s; 240s; 250s ; 260s; 270s;
Years:	247; 248; 249; 250 ; 251; 252; 253;

Year 250 (CCL) was a common year starting on Tuesday of the Julian calendar. At the time, it was known as the Year of the Consulship of Traianus and Gratus (or, less frequently, year 1003 Ab urbe condita). The denomination 250 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

A group of Franks penetrate as far as Tarragona in Spain (approximate date).
The Goths under King Cniva invade Moesia. They cross the Danube and lay siege to Novae and Marcianopolis.
Battle of Augusta Traiana: The Romans lose the battle against the Goths.
Cniva lays siege to Philippopolis (modern Plovdiv). After a long resistance, Cniva conquers the city and slays its one hundred thousand inhabitants.
The Alamanni drive the Romans from the modern area of Donau-Ries.
An epidemic begins in Ethiopia, moves into Egypt and the Roman colonies in North Africa, and spreads through the Roman Empire (named the Plague of Cyprian, after St. Cyprian, bishop of Carthage).

Africa

The Kingdom of Aksum (Axum) takes control of commerce on the Red Sea.

Asia

The earliest Chinese references to a device known as "emperor's south-pointing carriage" date to this period.

Mesomerica

Teotihuacán is rebuilt as a four-quartered cosmogram by Zapotec architects brought from Monte Albán in Oaxaca.
Classic period of Mesoamerican civilization begins.

By topic

Art and science

Diophantus writes Arithmetica, the first systematic treatise on algebra.
Approximate date
- The family portrait medallion, traditionally called the Family of Vunnerius Keramus, is made (it is later placed in the Brescia Cross, and then in the Museo Civico dell'Etá Cristiana, Brescia).
- The Ludovisi Battle sarcophagus, depicting battle between the Romans and the Barbarians, is made for use in Rome (it is later moved to the collection of the National Roman Museum).
- The Igel Column is erected at Trier in Germany.

Religion

January 3 – Decian persecution of Christians is initiated when Emperor Decius orders everyone in the Roman Empire (except Jews) to perform a sacrifice to the gods of religion in ancient Rome. On January 20, Pope Fabian becomes one of the first martyrs of this persecution.
Possible date – Denis, a bishop of Paris, is martyred by beheading.^[1]