429 BC

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Millennium: 1st millennium BC
Centuries: 6th century BC5th century BC4th century BC
Decades: 450s BC  440s BC  430s BC  – 420s BC –  410s BC  400s BC  390s BC
Years: 432 BC 431 BC 430 BC429 BC428 BC 427 BC 426 BC
429 BC in other calendars
Gregorian calendar 429 BC
Ab urbe condita 325
Ancient Egypt era XXVII dynasty, 97
- Pharaoh Artaxerxes I of Persia, 37
Ancient Greek era 87th Olympiad, year 4
Assyrian calendar 4322
Bengali calendar −1021
Berber calendar 522
Buddhist calendar 116
Burmese calendar −1066
Byzantine calendar 5080–5081
Chinese calendar 辛亥(Metal Pig)
2268 or 2208
    — to —
壬子年 (Water Rat)
2269 or 2209
Coptic calendar −712 – −711
Discordian calendar 738
Ethiopian calendar −436 – −435
Hebrew calendar 3332–3333
Hindu calendars
 - Vikram Samvat −372 – −371
 - Shaka Samvat N/A
 - Kali Yuga 2673–2674
Holocene calendar 9572
Iranian calendar 1050 BP – 1049 BP
Islamic calendar 1082 BH – 1081 BH
Javanese calendar N/A
Julian calendar N/A
Korean calendar 1905
Minguo calendar 2340 before ROC
Nanakshahi calendar −1896
Thai solar calendar 114–115

Year 429 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Consulship of Tricipitinus and Fidenas (or, less frequently, year 325 Ab urbe condita). The denomination 429 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.


By place[edit]


  • The Athenians under Xenophon march into Thrace to attack Chalcis. They destroy crops outside Spartolus and begin negotiating with pro-Athenian factions in Chalcis, but the anti-Athenian factions ask for help from Olynthus. An army from Chalcis, Spartolus, and Olynthus meet the Athenians in battle, but their hoplites are defeated. Reinforcements soon arrive from Olynthus, and they launch a second attack on the Athenians. The Athenians are routed, with all of their generals and 430 other men killed.
  • The Athenian admiral Phormio has two naval victories, the Naupactus and the Battle of Chalcis at the mouth of the Corinthian Gulf. In the first battle, his 20 ships defeat 47 Corinthian ships commanded by Machaon, Isocrates, and Agatharchidas that were advancing to reinforce the Spartan general, Cnemus' campaign in Acarnania. In the second battle, Phormio routs Cnemus' 77-vessel fleet.
  • The Athenians, in alliance with Polychna, destroy the Cretan city of Kydonia.[1]
  • The Macedonian king, Perdiccas II, once again betrays the Athenians and sends 1000 troops to support a Spartan assault on Acarnania but they arrive too late to help. In response to this, King Sitalkes of Thrace invades Macedonia with a vast army that includes independent Thracian tribes (such as the Dii) and Paionian tribes (Agrianes and Laeaeans). His progress is slowed when the promised support from Athens fails to materialise. So Perdiccas once again uses diplomacy to ensure the survival of Macedonia. He promises the hand of his sister in marriage to the nephew of Sitalkes, who then persuades Sitalkes to leave Macedonia.
  • The plague in Athens that is killing thousands of the city's inhabitants, claims Pericles. Cleon, who has headed the opposition to Pericles' rule, succeeds to power in Athens following Pericles' death.




  1. ^ C. Michael Hogan, Cydonia, The Modern Antiquarian, Jan. 23, 2008
  2. ^ William Spry Robinson, A Short History of Greece, 1895, Macmillan and Co., 392 pages