321 BC

Millennium:	1st millennium BC
Centuries:	5th century BC – 4th century BC – 3rd century BC
Decades:	350s BC  340s BC  330s BC  – 320s BC –  310s BC  300s BC  290s BC
Years:	324 BC 323 BC 322 BC – 321 BC – 320 BC 319 BC 318 BC

321 BC by topic

Politics

State leaders – Sovereign states

Birth and death categories

Births – Deaths

Establishments and disestablishments categories

Establishments – Disestablishments

Year 321 BC was a year of the pre-Julian Roman calendar.

Macedonian Empire

• Antipater makes Antigonus commander in chief of his army in Asia Minor. He sends him with Craterus to fight against Eumenes, the satrap of Cappadocia and a supporter of Perdiccas.
• Perdiccas marches against Ptolemy. When he fails to cross the Nile he is murdered by mutinous officers. Ptolemy is in power in Egypt and Seleucus in power in Babylon.
• The main generals of the late Alexander the Great agree to the Partition of Triparadisus.
• Ptolemy strengthens his position by marrying Eurydice, the third daughter of Antipater.
• Antigonus and Craterus defeat Eumenes in battle. Eumenes escapes.

Roman Republic

• Successes by Rome's armies force the Samnites to ask for peace. The terms are harsh so peace does not happen.
• Two Roman consuls, Spurius Postumius Albinus and Titus Veturius Calvinus, leading a force into Samnium. They are trapped in a mountain pass known as the Caudine Forks. They make a five-year treaty with the Samnites.

India

• Chandragupta Maurya, founder of the Mauryan empire, makes himself king of Magadha.

Deaths

• Craterus, Macedonian general (b. c. 370 BC)
• Perdiccas, Macedonian general and regent after the death of Alexander the Great (b. c. 365 BC)
• Zhou Xian Wang, King of the Zhou Dynasty of China