424 BC

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Millennium: 1st millennium BC
424 BC in various calendars
Gregorian calendar 424 BC
Ab urbe condita 330
Ancient Egypt era XXVII dynasty, 102
- Pharaoh Artaxerxes I of Persia, 42
Ancient Greek era 89th Olympiad (victor
Assyrian calendar 4327
Balinese saka calendar N/A
Bengali calendar −1016
Berber calendar 527
Buddhist calendar 121
Burmese calendar −1061
Byzantine calendar 5085–5086
Chinese calendar 丙辰(Fire Dragon)
2273 or 2213
    — to —
丁巳年 (Fire Snake)
2274 or 2214
Coptic calendar −707 – −706
Discordian calendar 743
Ethiopian calendar −431 – −430
Hebrew calendar 3337–3338
Hindu calendars
 - Vikram Samvat −367 – −366
 - Shaka Samvat N/A
 - Kali Yuga 2677–2678
Holocene calendar 9577
Iranian calendar 1045 BP – 1044 BP
Islamic calendar 1077 BH – 1076 BH
Javanese calendar N/A
Julian calendar N/A
Korean calendar 1910
Minguo calendar 2335 before ROC
Nanakshahi calendar −1891
Thai solar calendar 119–120
Tibetan calendar 阳火龙年
(male Fire-Dragon)
−297 or −678 or −1450
    — to —
(female Fire-Snake)
−296 or −677 or −1449

Year 424 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Tribunate of Crassus, Fidenas, Rutilus and Iullus (or, less frequently, year 330 Ab urbe condita). The denomination 424 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]

Persian empire[edit]


  • At the Congress of Gela, the statesman Hermocrates of Syracuse persuades the cities of Sicily to agree to make peace and urges the exclusion of foreign powers. As a result, the three-year war between his city and Sicily's pro-Athenian towns ends and the Athenian forces, which had been sent to Sicily to support Greek settlements, are forced to withdraw.
  • Demosthenes and Hippocrates attempt to capture Megara, but they are defeated by the Spartans under their general Brasidas. Demosthenes then marches to Naupactus to assist in a democratic revolution, and to gather troops for an invasion of Boeotia. However, Demosthenes and Hippocrates are unable to coordinate their attacks and Hippocrates is defeated at the Battle of Delium by Pagondas of Thebes. During the battle, Socrates is said to have saved the life of Alcibiades. Demosthenes attacks Sicyon and is defeated as well.
  • After he frustrates the Athenian attack on Megara, Brasidas marches through Boeotia and Thessaly to Chalcidice at the head of 700 helots and 1000 Peloponnesian mercenaries to join the Macedonian king Perdiccas II. Refusing to be made a tool for the furtherance of Perdiccas' ambitions, Brasidas wins over the important cities of Acanthus, Stagirus, Amphipolis and Torone as well as a number of minor towns. An attack on Eion is foiled by the arrival of Thucydides at the head of an Athenian squadron.
  • Brasidas' capture of the city of Amphipolis is a major reverse for Athens, for which the Athenian general (and future historian) Thucydides is held responsible and banished. This gives Thucydides the opportunity for undistracted study for his History and for travel and wider contacts, especially on the Peloponnesian side (Sparta and its allies).
  • Nicias captures the Peloponnesian island of Cythera, from which to harry the Spartans.

By topic[edit]



  • The temple to Athena Nike (also known as the Wingless Victory) on the Athenian Acropolis is completed. It has been designed by the Athenian architect Callicrates.


424/423 BC - estimated birth of Plato, a famous philosopher.