251 BC

251 BC in various calendars
Gregorian calendar	251 BC; CCLI BC
Ab urbe condita	503
Ancient Egypt era	XXXIII dynasty, 73
- Pharaoh	Ptolemy II Philadelphus, 33
Ancient Greek era	132nd Olympiad, year 2
Assyrian calendar	4500
Balinese saka calendar	N/A
Bengali calendar	−843
Berber calendar	700
Buddhist calendar	294
Burmese calendar	−888
Byzantine calendar	5258–5259
Chinese calendar	己酉年 (Earth Rooster); 2447 or 2240; — to —; 庚戌年 (Metal Dog); 2448 or 2241
Coptic calendar	−534 – −533
Discordian calendar	916
Ethiopian calendar	−258 – −257
Hebrew calendar	3510–3511
Hindu calendars
- Vikram Samvat	−194 – −193
- Shaka Samvat	N/A
- Kali Yuga	2850–2851
Holocene calendar	9750
Iranian calendar	872 BP – 871 BP
Islamic calendar	899 BH – 898 BH
Javanese calendar	N/A
Julian calendar	N/A
Korean calendar	2083
Minguo calendar	2162 before ROC; 民前2162年
Nanakshahi calendar	−1718
Seleucid era	61/62 AG
Thai solar calendar	292–293
Tibetan calendar	阴土鸡年; (female Earth-Rooster); −124 or −505 or −1277; — to —; 阳金狗年; (male Iron-Dog); −123 or −504 or −1276

Millennium:	1st millennium BC
Centuries:	4th century BC; 3rd century BC ; 2nd century BC;
Decades:	270s BC; 260s BC; 250s BC ; 240s BC; 230s BC;
Years:	254 BC; 253 BC; 252 BC; 251 BC ; 250 BC; 249 BC; 248 BC;

Year 251 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Metellus and Pacilus (or, less frequently, year 503 Ab urbe condita). The denomination 251 BC 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.

Gregorian calendar	251 BC CCLI BC
Ab urbe condita	503
Ancient Egypt era	XXXIII dynasty, 73
- Pharaoh	Ptolemy II Philadelphus, 33
Ancient Greek era	132nd Olympiad, year 2
Assyrian calendar	4500
Balinese saka calendar	N/A
Bengali calendar	−843
Berber calendar	700
Buddhist calendar	294
Burmese calendar	−888
Byzantine calendar	5258–5259
Chinese calendar	己酉年 (Earth Rooster) 2447 or 2240 — to — 庚戌年 (Metal Dog) 2448 or 2241
Coptic calendar	−534 – −533
Discordian calendar	916
Ethiopian calendar	−258 – −257
Hebrew calendar	3510–3511
Hindu calendars
- Vikram Samvat	−194 – −193
- Shaka Samvat	N/A
- Kali Yuga	2850–2851
Holocene calendar	9750
Iranian calendar	872 BP – 871 BP
Islamic calendar	899 BH – 898 BH
Javanese calendar	N/A
Julian calendar	N/A
Korean calendar	2083
Minguo calendar	2162 before ROC 民前2162年
Nanakshahi calendar	−1718
Seleucid era	61/62 AG
Thai solar calendar	292–293
Tibetan calendar	阴土鸡年 (female Earth-Rooster) −124 or −505 or −1277 — to — 阳金狗年 (male Iron-Dog) −123 or −504 or −1276