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|Millennium:||1st millennium BC|
|358 BC by topic|
|Gregorian calendar||358 BC
|Ab urbe condita||396|
|Ancient Egypt era||XXX dynasty, 23|
|- Pharaoh||Nectanebo II, 3|
|Ancient Greek era||105th Olympiad, year 3|
|Balinese saka calendar||N/A|
|Chinese calendar||壬戌年 (Water Dog)
2339 or 2279
— to —
癸亥年 (Water Pig)
2340 or 2280
|Coptic calendar||−641 – −640|
|Ethiopian calendar||−365 – −364|
|- Vikram Samvat||−301 – −300|
|- Shaka Samvat||N/A|
|- Kali Yuga||2743–2744|
|Iranian calendar||979 BP – 978 BP|
|Islamic calendar||1009 BH – 1008 BH|
|Minguo calendar||2269 before ROC
|Thai solar calendar||185–186|
−231 or −612 or −1384
— to —
−230 or −611 or −1383
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Year 358 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Consulship of Ambustus and Proculus (or, less frequently, year 396 Ab urbe condita). The denomination 358 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.
- Artaxerxes III ("Ochus") succeeds Artaxerxes II as King of Persia and restores central authority over the Persian empire's satraps. To secure his throne he puts to death most of his relatives.
- Alexander of Pherae, Despot of Pherae in Thessaly is murdered by his wife's brother at her instigation.
- Cersobleptes, in conjunction with his brothers, Amadocus II and Berisades, inherits the dominions of the Thracian king, Cotys I, following his murder. However, the overall management of Thracian affairs is assumed by the Euboean adventurer, Charidemus, who is connected by marriage with the royal family, and who plays the prominent part in the ensuing negotiations with Athens for the possession of the Thracian Chersonese.
- Philip II of Macedonia invades the hill tribes of Paeonia and decisively beats them. He established his authority inland as far as Lake Ohrid.
- The Romans defeat the Volsci, annex most of their territory, and settle it with Roman colonists. The Romans also force the Latin League to renew its close alliance with Rome, an alliance which was weakened by Rome’s defeat at the hands of the Gauls in 390 BC.
- Seleucus I Nicator, Macedonian officer of Alexander the Great and founder of the Seleucid dynasty(d. 281 BC)
- Artaxerxes II, King of the Persia (b. c. 436 BC)
- Alexander of Pherae, Despot of Pherae in Thessaly, Greece
- Cotys I, King of Thrace
- Bardyllis, Illyrian king (killed in battle by Phillip of Macedon) (b. c. 448 BC)