427 BC

Millennium:	1st millenniumBC
Centuries:	6th centuryBC 5th centuryBC 4th centuryBC
Decades:	440sBC 430sBC 420sBC 410sBC 400sBC
Years:	430BC 429BC 428BC 427BC 426BC 425BC 424BC

427 BC in variouscalendars

Gregorian calendar	427 BC CDXXVII BC
Ab urbe condita	327
Ancient Egypt era	XXVIIdynasty,99
- Pharaoh	Artaxerxes I of Persia,39
Ancient Greek era	88thOlympiad,year 2
Assyrian calendar	4324
Balinese saka calendar	N/A
Bengali calendar	−1019
Berber calendar	524
Buddhist calendar	118
Burmese calendar	−1064
Byzantine calendar	5082–5083
Chinese calendar	Quý xấuNăm (WaterOx) 2271 or 2064 — to — Giáp dần năm (WoodTiger) 2272 or 2065
Coptic calendar	−710 – −709
Discordian calendar	740
Ethiopian calendar	−434 – −433
Hebrew calendar	3334–3335
Hindu calendars
-Vikram Samvat	−370 – −369
-Shaka Samvat	N/A
-Kali Yuga	2674–2675
Holocene calendar	9574
Iranian calendar	1048 BP – 1047 BP
Islamic calendar	1080 BH – 1079 BH
Javanese calendar	N/A
Julian calendar	N/A
Korean calendar	1907
Minguo calendar	2338 beforeROC Dân trước 2338 năm
Nanakshahi calendar	−1894
Thai solar calendar	116–117
Tibetan calendar	Âm trâu năm (female Water-Ox) −300 or −681 or −1453 — to — Dương mộc hổ năm (male Wood-Tiger) −299 or −680 or −1452

Year427 BCwas a year of thepre-Julian Roman calendar.At the time, it was known as theYear of the Consulship of Ahala and Mugillanus(or, less frequently,year 327Ab urbe condita). The denomination 427 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

• AristophanesproducesDaitaleis(The Banqueters)
• Sparta's KingArchidamus IIis succeeded by his sonAgis II.
• Following the surrender ofMytilenetoAthens,the Athenian leaderCleoninsists that the city be destroyed. In response to the pleadings of a number of Athenian citizens, Cleon's decree to destroy the population of Mytilene is reversed with only the ringleaders of the Mytilenean revolt being executed.
• Plataeasurrenders to the Spartans andThebansafter its garrison comes close to death from starvation. Over 200 prisoners are put to death and Plataea is destroyed.
• The civil war inCorcyra,in which the Athenians and the Spartans have interfered ineffectually, results in a victory of the democrats (who support an alliance with Athens) over the oligarchs.
• In an effort to blockade Sparta from access toSiciliancorn,Athensresponds to a plea for help from a delegation from the city ofLeontiniled byGorgias,the sophist and rhetorician. Leontini is being threatened bySyracusewhich is allied to Sparta. However, the Athenian mission led by the Athenian generalLachesis unable to offer much help. Laches is later prosecuted by Cleon for his unsuccessful mission to support Athenian interests in Sicily.

Roman Republic

• TheQuaestorshipis opened to thePlebs.

Births

• Plato,Greek philosopher (d. c.347 BC)

Deaths

• Archidamus II,king ofSparta