- Birth of Praxiteles, famous Greek sculptor.
- Socrates is executed.
- Greek (Spartan) assault on Persia.
- Spartan King Agesilaus wins a major engagement at Sardis against Persian forces.
- Beotia invades Phocis against the order of Sparta. Sparta goes to was against the Beotian League.
- Spartan general Lysander is killed during an assault on Haliartus.
- Sparta loses control of Pharsalus and Heraclea.
- Corinthian War begins. It will end eight years later with a Spartan victory and the subjugation of Asian Greek cities to Persia.
- Agesilaus and his army in Asia are recalled in order to attack Sparta’s enemies. They will march overland to the Hellespont.
- Sparta and allies win a battle at the River Nemea.
- (August 14) Spartans (Agesilaus commanding) win a major battle at Coronea against Beotians, Athenians and allies. Agesilaus wounded.
- Sparta takes and garrisons Sidus and Crommyon (North Corinthia).
- Sparta (Agesilaus) takes Northwest Corinthia and garrison Oenoe.
- The Beotian Confederacy is dissolved
- Birth of Philip II of Macedonia.
- Athens’ fleet prevails over Sparta’s at the Battle of Naxos.
- King Evagoras of Salamia (Cyprus) is assassinated. Son Nicocles ascends the throne.
- The Greek city of Helike is hit by an earthquake and sinks underwater.
- Construction of the sanctuary to Asklepios (a large theatre) in Epidaurus.
- Philip II of Macedonia takes the throne.
- Birth of Seleucus I Nicator, first ruler of the Seleucid empire, one of Alexander’s Dialochi.
- Birth of Alexander III of Macedon (the Great – Mégas Aléxandros). He would invade much of the world.
- Tomb of Mausolus at Halicarnassus completed after three years of work. One of the Seven Wonders of the Ancient World.
- Mausolus orders the reconstruction of Priene (Priēnē) in Ionia as a deep-water port. Work will be completed under Alexander the Great.
- Cyprus revolts against Persia.
- Philip II of Macedonia invades Euboea.
- Death of Plato.
- Persia restores order in Cyprus.
- Death of Philip II of Macedonia.
- Death of Praxiteles, famous Greek sculptor.
- Death of Alexander III of Macedon (the Great – Mégas Aléxandros), on June 11, in Babylon.
- Temple of Athena at Priene opened. It is dedicated to Alexander the Great.
- Athens, the Locrians, Phocians, Dorians, Thessalians and Aetolians revolt against Macedon. They are led by Leosthenes, who dies the same year at the siege of Lamia.
- A Macedonian fleet under the command of Cleitus defeats the Athenian fleet.
- Death of Aristotle.
- Death of Demosthenes.
- Death of Leonnatus, former officer of Alexander of Macedon.
- Cyprus sides with Ptolemy I Soter against Antigonus.
- Perdiccas killed by his (might have been in 320)
- Death of Athenian Phocion (the Good), by judicial suicide.
Subject to frequent updates as the work progresses.
This timeline owes a large debt to the Attalus.org web site for most entries after 322 B.C. Wikipedia has been invaluable, as always.