405 BC

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Millennium: 1st millennium BC
405 BC in various calendars
Gregorian calendar 405 BC
Ab urbe condita 349
Ancient Egypt era XXVII dynasty, 121
- Pharaoh Darius II of Persia, 19
Ancient Greek era 93rd Olympiad, year 4
Assyrian calendar 4346
Balinese saka calendar N/A
Bengali calendar −997
Berber calendar 546
Buddhist calendar 140
Burmese calendar −1042
Byzantine calendar 5104–5105
Chinese calendar 乙亥(Wood Pig)
2292 or 2232
    — to —
丙子年 (Fire Rat)
2293 or 2233
Coptic calendar −688 – −687
Discordian calendar 762
Ethiopian calendar −412 – −411
Hebrew calendar 3356–3357
Hindu calendars
 - Vikram Samvat −348 – −347
 - Shaka Samvat N/A
 - Kali Yuga 2696–2697
Holocene calendar 9596
Iranian calendar 1026 BP – 1025 BP
Islamic calendar 1058 BH – 1057 BH
Javanese calendar N/A
Julian calendar N/A
Korean calendar 1929
Minguo calendar 2316 before ROC
Nanakshahi calendar −1872
Thai solar calendar 138–139
Tibetan calendar 阴木猪年
(female Wood-Pig)
−278 or −659 or −1431
    — to —
(male Fire-Rat)
−277 or −658 or −1430

Year 405 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Tribunate of Barbatus, Capitolinus, Cincinnatus, Medullinus, Iullus and Mamercinus (or, less frequently, year 349 Ab urbe condita). The denomination 405 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]



  • Dionysius the Elder rises to power as the tyrant of Syracuse. He makes peace with the Carthaginian general, Himilco (whose army has been weakened by the plague), and fortifies Syracuse. This treaty leaves Carthage in control of most of Sicily.
  • Dionysius the Elder ruthlessly consolidates and expands his power. He builds a wall around Syracuse and fortifies Epipolae. The Greek citizens of Naxos, Catana, and Leontini are removed from their cities; many of them are enslaved and their homes are given to Sicilian and Italian mercenaries. Dionysius prepares his army to fight against Carthage, which now occupies western and southern Sicily.

By topic[edit]