274 BC

Millennium:	1st millenniumBC
Centuries:	4th centuryBC 3rd centuryBC 2nd centuryBC
Decades:	290sBC 280sBC 270sBC 260sBC 250sBC
Years:	277BC 276BC 275BC 274BC 273BC 272BC 271BC

274 BC in variouscalendars

Gregorian calendar	274 BC CCLXXIV BC
Ab urbe condita	480
Ancient Egypt era	XXXIIIdynasty,50
- Pharaoh	Ptolemy II Philadelphus,10
Ancient Greek era	126thOlympiad,year 3
Assyrian calendar	4477
Balinese saka calendar	N/A
Bengali calendar	−866
Berber calendar	677
Buddhist calendar	271
Burmese calendar	−911
Byzantine calendar	5235–5236
Chinese calendar	Bính tuấtNiên (FireDog) 2424 or 2217 — to — Đinh hợi niên (FirePig) 2425 or 2218
Coptic calendar	−557 – −556
Discordian calendar	893
Ethiopian calendar	−281 – −280
Hebrew calendar	3487–3488
Hindu calendars
-Vikram Samvat	−217 – −216
-Shaka Samvat	N/A
-Kali Yuga	2827–2828
Holocene calendar	9727
Iranian calendar	895 BP – 894 BP
Islamic calendar	923 BH – 921 BH
Javanese calendar	N/A
Julian calendar	N/A
Korean calendar	2060
Minguo calendar	2185 beforeROC Dân tiền 2185 niên
Nanakshahi calendar	−1741
Seleucid era	38/39AG
Thai solar calendar	269–270
Tibetan calendar	Dương hỏa cẩu niên (male Fire-Dog) −147 or −528 or −1300 — to — Âm hỏa trư niên (female Fire-Pig) −146 or −527 or −1299

Year274 BCwas a year of thepre-Julian Roman calendar.At the time it was known as theYear of the Consulship of Dentatus and Merenda(or, less frequently,year 480Ab urbe condita). The denomination 274 BC for this year has been used since the early medieval period, when theAnno Dominicalendar erabecame the prevalent method in Europe for naming years.

Events

By place

Greece

• Pyrrhusreturns fromItalyandSicilyand invadesMacedoniadefeatingAntigonus II Gonatasat theBattle of the Aousand conquering Upper Macedonia andThessalywhile Antigonus holds onto the coastal Macedonian towns. Antigonus' troops desert him and Pyrrhus is declared King of Macedonia.

Roman Republic

• TheRomansunderManius Curius Dentatusconquer theLucanians.

Egypt

• Magas of Cyrenemarries Apama, the daughter ofAntiochusand uses his marital alliance to foment a pact to invadeEgypt.He opens hostilities against his half brotherPtolemy II,by declaring his province ofCyrenaicato be independent and then attacks Egypt from the west as Antiochus I takes the Egyptian controlled areas in coastalSyriaand southernAnatolia,after which he attacksPalestine.
• Magas has to stop his advance against Ptolemy II due to an internal revolt by theLibyanMarmaridae nomads.