426 BC

250 BC in various calendars

Gregorian calendar	250 BC CCL BC
Ab urbe condita	504
Ancient Egypt era	XXXIII dynasty, 74
- Pharaoh	Ptolemy II Philadelphus, 34
Ancient Greek era	132nd Olympiad, year 3
Assyrian calendar	4501
Balinese saka calendar	N/A
Bengali calendar	−843 – −842
Berber calendar	701
Buddhist calendar	295
Burmese calendar	−887
Byzantine calendar	5259–5260
Chinese calendar	庚戌年 (Metal Dog) 2448 or 2241     — to — 辛亥年 (Metal Pig) 2449 or 2242
Coptic calendar	−533 – −532
Discordian calendar	917
Ethiopian calendar	−257 – −256
Hebrew calendar	3511–3512
Hindu calendars
- Vikram Samvat	−193 – −192
- Shaka Samvat	N/A
- Kali Yuga	2851–2852
Holocene calendar	9751
Iranian calendar	871 BP – 870 BP
Islamic calendar	898 BH – 897 BH
Javanese calendar	N/A
Julian calendar	N/A
Korean calendar	2084
Minguo calendar	2161 before ROC 民前2161年
Nanakshahi calendar	−1717
Seleucid era	62/63 AG
Thai solar calendar	293–294
Tibetan calendar	阳金狗年 (male Iron-Dog) −123 or −504 or −1276     — to — 阴金猪年 (female Iron-Pig) −122 or −503 or −1275

426 BC in various calendars

Gregorian calendar	426 BC CDXXVI BC
Ab urbe condita	328
Ancient Egypt era	XXVII dynasty, 100
- Pharaoh	Artaxerxes I of Persia, 40
Ancient Greek era	88th Olympiad, year 3
Assyrian calendar	4325
Balinese saka calendar	N/A
Bengali calendar	−1019 – −1018
Berber calendar	525
Buddhist calendar	119
Burmese calendar	−1063
Byzantine calendar	5083–5084
Chinese calendar	甲寅年 (Wood Tiger) 2272 or 2065     — to — 乙卯年 (Wood Rabbit) 2273 or 2066
Coptic calendar	−709 – −708
Discordian calendar	741
Ethiopian calendar	−433 – −432
Hebrew calendar	3335–3336
Hindu calendars
- Vikram Samvat	−369 – −368
- Shaka Samvat	N/A
- Kali Yuga	2675–2676
Holocene calendar	9575
Iranian calendar	1047 BP – 1046 BP
Islamic calendar	1079 BH – 1078 BH
Javanese calendar	N/A
Julian calendar	N/A
Korean calendar	1908
Minguo calendar	2337 before ROC 民前2337年
Nanakshahi calendar	−1893
Thai solar calendar	117–118
Tibetan calendar	阳木虎年 (male Wood-Tiger) −299 or −680 or −1452     — to — 阴木兔年 (female Wood-Rabbit) −298 or −679 or −1451

Events

By place

Greece

• The Athenian leader Cleon and Athenian general Demosthenes revitalise the city's military and naval forces despite opposition from Nicias, a rich merchant and soldier, and his supporters.
• Demosthenes unsuccessfully besieges the Corinthian colony of Leukas. As a result, he does not return to Athens, fearing for his life. However when, later in the year, Ambracia invades Acarnania, and the Acarnanians seek help from Demosthenes, who is patrolling the Ionian Sea coast with twenty Athenian ships, he reaches the Athenian naval base in the Gulf of Corinth at Naupactus and secures it just in time to defend it against a large Spartan army from Delphi under Eurylochus which has come to assist the Ambraciots. Demosthenes defeats the Spartan army and Eurylochus is killed during the Battle of Olpae. The Acarnanians and Ambraciots then sign a peace treaty.
• An Athenian army under Nicias, Hipponicus and Eurymedon defeats a combined Tanagran and Theban army in the Battle of Tanagra.

Deaths

• Eurylochus, Spartan general (killed in battle)
• Herodotus of Halicarnassos, Dorian Greek historian (b. 484 BC)
• Zhou kao wang, King of the Zhou Dynasty of China