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Chronicles of Darkness: 338 BCE
- Philip of Macedon defeats the combined forces of Athens and Thebes in the Battle of Chaeronaea. Macedonia assumes hegemonic rule over Greece, preparing for war against Persia.
- Artaxerxes III is poisoned by his vizier, the eunuch Bagoas. Artaxerxes IV is crowned, but acts as a puppet ruler to Bagoas.