(404 – 403
BC)
Spartan-imposed oligarchy that ruled Athens after the
Peloponnesian War. Thirty commissioners were appointed to the oligarchy, which had an extremist conservative core, led by Critias. Their oppressive regime fostered a bloody purge, in which perhaps 1,500 residents were killed. Many moderates fled the city; gathering a force, they returned to defeat the tyrants' forces in a battle at Piraeus in 403. The 30 fled and were killed off over the next few years.
For more information on Thirty Tyrants, visit Britannica.com.