320 BC

Events

Alexander the Great's various generals control different parts of Alexander's empire. Ptolemy controls Egypt, Seleucus controls Babylon and Syria, Antipater and his son Cassander control Macedon and Greece, Antigonus controls Phrygia and other parts of Asia Minor, Lysimachus controls Thrace and Pergamum and Eumenes controls the Cappadocia and Pontus areas.
Judea and Syria are annexed by Ptolemy and he gives Judea a large measure of self-government.
Eudemus makes himself master of the territories of the Indian king Porus, and treacherously puts that monarch to death.

Alexandria in Macedonian Egypt becomes the largest city of the world, taking over the lead from Babylon in Macedonian Babylonia.

Timocharis of Alexandria, Greek astronomer responsible for the first recorded observation of Mercury and the first star catalogue (d. 260 BC)

Anaximenes of Lampsacus, Greek rhetorician and historian
Porus, Indian king spared by Alexander the Great (killed)
Zoilus, Greek grammarian, cynic philosopher and literary critic from Amphipolis in Macedon (b. c. 400 BC)