321 BC

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

 Events 
 By place 

 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, lead 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

Category:320s BC