358 BC

By place

Persian Empire

• Artaxerxes III 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.

  Greece

• 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.

  Macedonia

• Philip II of Macedonia invades the hill tribes of Paeonia and decisively beats them. He established his authority inland as far as Lake Ohrid.

  Roman Republic

• 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.