323 BC

By place

Macedonian Empire

• 10 June/11 June - In Babylon, Alexander the Great dies, ten days after being taken ill after a prolonged banquet and drinking bout. Diogenes, the philosopher he met years before just about when he was to set out on his conquests, allegedly dies on the exact same day.
• The Partition of Babylon sets out the division of the territories conquered by Alexander the Great between his generals. The partition is a result of a compromise, essentially brokered by Eumenes, following a conflict of opinion between the party of Meleager, who wishes to give full power to Philip III, and the party of Perdiccas, who wishes to wait for the birth of the heir of Alexander and his wife, Roxana to give him the throne under the control of a regent.
• Under the agreement, Philip III becomes king, but Perdiccas, as the regent, effectively becomes the ruler of Alexander's empire. Perdiccas manages the partition of the territories between the former generals and satraps of Alexander who support him in his dispute with Meleager. This settlement leaves:
• * Antipater in control of whole mainland Greece from Macedonia to Peloponese and many islands of the Aegean ;
• * Laomedon governing Syria and Phoenicia;
• * Philotas looking after Cilicia;
• * Peithon taking Media;
• * Antigonus gaining the governorship of Pamphylia and Lycia;
• * Leonnatus with Phrygia;
• * Neoptolemus with Armenia;
• * Ptolemy as governor of Egypt;
• * Eumenes of Cardia as governor of Cappadocia and Paphlagonia; and
• * Lysimachus becomes governor of Thrace.
• Perdiccas exercises a wide authority in Asia as "supreme general". Perdiccas largely leaves Alexander's arrangements intact:
• * Taxiles and Porus are to rule over their kingdoms in India;
• * Alexander's father-in-law Oxyartes rules Gandhara;
• * Sibyrtius governs Arachosia and Gedrosia;
• * Stasanor rules in Aria and Drangiana;
• * Philip controls Bactria and Sogdiana;
• * Phrataphernes rules Parthia and Hyrcania;
• * Peucestas governs Persis;
• * Tlepolemus is left in charge of Carmania;
• * Atropates governs northern Media;
• * Archon of Pella controls Babylonia; and
• * Arcesilas rules northern Mesopotamia.
• Alexander orders demolition of the ziggurat at Etemenanki.
• Meleager and about 300 of his partisans are killed by forces loyal to Perdiccas. The first wife of Alexander, Roxana, arranges for Alexander's second wife, Stateira II, to be killed.

  Greece

• Some of the Greek cities, including Athens, revolt against the Macedonian regent, Antipater, following the news of Alexander's death. Athens' actions are incited by the speeches of the Athenian general Leosthenes and the Athenian orator Hypereides. Joined by cities in central and south Greece, the Athenians defeat Antipater in battle. They force him to take refuge in Lamia, where he is besieged for several months by the Greek allies.
• The Greek philosopher and scientist, Aristotle, faces a strong anti-Macedonian reaction in Athens following the death of Alexander the Great. Aristotle is accused of impiety by the Athenians. However, he escapes to Chalcis in Euboea.
• Theophrastus, who has been studying in Athens under Aristotle, becomes the head of the Lyceum, the academy in Athens founded by Aristotle, when Aristotle is forced to leave Athens.
• Following Alexander the Great's death, the Athenians recall Demosthenes from exile and provide the money to pay his fine.