Overview
The year 321 BC falls in the turbulent decades immediately after Alexander the Great’s death (323 BC). It was a turning point in the struggle among his generals for control of the empire and a moment of military crisis for the Roman Republic. In Roman terms it is recorded in the pre-Julian Roman calendar.
Successors of Alexander (the Diadochi)
In the eastern Mediterranean and Asia, Alexander’s former commanders competed to convert temporary appointments into lasting power. Perdiccas, who had acted as regent for the nominal kings, launched a campaign against Egypt to challenge Ptolemy’s authority. That expedition failed when Perdiccas’ own senior officers turned on him; he was assassinated during the Egyptian campaign.
Perdiccas’ death led to a redivision of territories among the leading generals. A conference at Triparadisus reorganized satrapies and recognized new arrangements of authority, with senior Macedonian officials and provincial governors confirmed or replaced. These settlements did not end rivalry, but they redefined the political map that would evolve into the Hellenistic kingdoms.
Roman Republic and the Caudine Forks
In Italy, Rome continued its long conflict with the Samnites. Roman armies were trapped at the pass of Caudine Forks and compelled to accept a humiliating surrender arranged by the Samnite commander. The episode damaged Roman prestige and produced a temporary political and military crisis, though Rome ultimately recovered in later years.
Consequences and significance
Events of 321 BC accelerated the fragmentation of Alexander’s empire and set the stage for decades of warfare among the Diadochi, from which the Hellenistic kingdoms of Egypt, Syria, Macedon and others eventually emerged. At the same time, Roman resilience after setbacks like Caudine Forks contributed to its steady expansion across Italy.
Notable death
- Perdiccas — Macedonian general and regent, assassinated during his Egyptian campaign.