Sikyonia

600 BCE

Kleisthenes becomes tyrant of Sikyon.

595 BCE

Kleisthenes of Sikyon leads the First Sacred War against Phokis and destroys Kirrha.

555 BCE

Approximate end of the tyranny of Kleisthenes of Sikyon.

494 BCE

Sparta crushes Argos at the Battle of Sepeia. Sikyon participates with 12 ships.

480 BCE
August 7

The Greek allies are forced to withdraw against the Persians in the Battle of Artemisium. Afterwards the Persians occup Histaia. The Greek fleet is supplied by Athens, Chalkis, Sparta, Troizen, Opuntian Lokris, Corinth, Megara, Epidauros, Aegina, Sikyon, and Kios.

459 BCE

Athenians attempt to land at Halieis but are repulsed by Sikyon.

456 BCE

Athens under Tolmides lands at Sikyon and defeats them.

454 BCE

Sikyon is again defeated by Athens, this time under Perikles, though the city is not taken due to help from Sparta.

446 BCE

Megara revolts against Athens and is supported by Sikyon.

424 BCE

Athens under Demosthenes invade Sikyon, but are repelled by them.

419 BCE

Sikyon and Corinth prevent Athens under Alkibiades from fortifying Rhion.

418 BCE

Sparta and Sikyon march under King Agis against Argos, but a truce is arrived at before battle.

394 BCE
July

Sparta and their allies, including Sikyon and Tegea, defeat Athens and their allies at the Battle of Nemea. On Athens side are Thebes, Lokris Opuntii, and Corinth. With Sparta are Halieis, Sikyon, Epidauros, Troizen, and Hermione. Phlious remains neutral. Pellene fights on the side of Sparta against Thespiai.

392 BCE

Sparta uses Sikyon as a base to take the long walls of Corinth. Sparta succeeds though Sikyon takes heavy losses against Argos.

391 BCE

Iphikrates of Athens regains the long walls of Corinth and advances against Phlious and Sikyon.

378 BCE

Agesilaos executes an expedition against Thebes, with support from Sikyon and Phlious.

369 BCE

Thebes attacks Spartan territory in Prasiai. Sikyon rushes to help Sparta.

368 BCE

Euphron becomes tyrant of Sikyon.

368 BCE

Sparta, Athens, Pellene, and Sikyon attempt to stop Thebes under Epaminondas by guarding the fort of Oneion near Corinth. Epaminondas gets around them and attacks Sikyon, Pellene, Epidauros, and unsuccessfully attempts to take Corinth.

368 BCE

Soldiers from Syracuse support Sparta against Thebes, then invade and defeat Sikyon.

367 BCE

Sikyon helps Argos in a war against Phlious.

366 BCE

Athens under the general Chares attempt to take Oropos, which had been taken by Sikyon with the support of Thebes, but the Athenians are forced to withdraw.

366 BCE

Arkadians under Aineas of Stymphalos march to Sikyon and send Euphron into flight.

365 BCE

Euphron with the help of Athens recaptures Sikyon, except for the akropolis, which is guarded by a Theban garrison.

364 BCE

Euphron flees Sikyon to Thebes, where he is killed.

362 BCE

Epaminondas and Boeotia defeat Sparta at the Battle of Mantinea. However, the death of Epaminondas would spell Thebes‘ downfall. On the side of Thebes were Tegea, Argos, Messene, Sikyon, and the Aenianians. On the side of Sparta were Heraia, Athens, Elis, and Mantinea.

314 BCE

Alexander, the son of Polyperchon, is assassinated in Sikyon. His wife Kratesipolis takes control of the city.

313 BCE

Kratesipolis wards off the army of Antigonos’ general Telesphoros from Sikyon.

311 BCE

Polyperchon controls much of the Peloponnese, including Corinth and Sikyon.

308 BCE

Ptolemy I takes Sikyon from Kratesipolis and installs garrisons in Sikyon and Corinth.

303 BCE

Demetrios Poliorketes relocates Sikyon to a more defensible location.

302 BCE

Athens and Sikyon form an alliance, the nature of which is not known.

300 BCE

Antigonos II installs the tyrant Kleon at Sikyon.

264 BCE

Antigonos II installs the tyrant Abantidas at Sikyon.

252 BCE

Antigonos II installs the tyrant Paseas at Sikyon.

251 BCE

The tyrant Iseas of Aegira is overthrown by Aratus of Sikyon, a key leader of the Achaean League, who frees the city from local tyranny.

251 BCE

Antigonos II installs the tyrant Nikokles at Sikyon.

251 BCE

Aratos of Sikyon removes the tyrant Nikokles, who Antigonos II had installed. Antigonos II attempts to bribe Aratos but is unsuccessful.

243 BCE

Aratos of Sikyon takes Acrocorinth. The inhabitants of Corinth rise up against Antigonos II.

228 BCE

Aratos of Sikyon takes the Acrocorinth and frees Argos. Xenon steps down in Hermione.

226 BCE

The Spartans under King Kleomenes III defeat the Achaian League under Aratos of Sikyon (and including Argos and Megalopolis) in the Battle of Dyme.

223 BCE

Mantineia is sacked by Antigonos III Doson. The city is handed over to Aratos of Sikyon, who repopulates it and renames it to Antigonia.

220 BCE

The Social War begins, pitting members of the Achaian League, including Aegira, Patrai, Dyme, Bura, Sikyon, Corinth, Megalopolis, Messenia, Argos, Elis, and Macedon, against Sparta under King Kleomenes III, who were supported by the Aetolian League and Athens.

220 BCE

The Aetolians defeat the Achaian League under Aratos of Sikyon near Kaphyai.

218 BCE

The meeting of the Achaian assembly is transferred from Aigion to Sikyon.

209 BCE

A Roman army under Sulpicius Puplius and the Aetolian League ravages Sikyon before being pushed out by Philip V.

200 BCE-
197 BCE

During the Second Macedonian War between Rome and Philip V of Macedon, Aegira, the Aetolian League, Corinth, Sikyon, Patrai, Athens, Pergamon, and Rhodes support Rome.

146 BCE

The Achaian League is defeated by Rome at the Battle of Skarpheia. Corinth is destroyed and Dyme, Patrai, Sikyon, Bura, Megalopolis, Thebes, Pellene, and Aegira come under the control of Rome.