The Cleomenean War was fought between Sparta and the Achaean League for the control of the Peloponnese. Under the leadership of king Cleomenes III, Sparta initially had the upper hand, which forced the Achaean League to call for help the Macedonian king Antigonos Doson, who decisively defeated Cleomenes in the battle of Sellasia in 222.
Traditional Greek phalanx with spears and large shields (aspis).
A coin depicting Ptolemy III of Egypt.
Aratus of Sicyon was a politician and military commander of Hellenistic Greece. He was elected strategos of the Achaean League 17 times, leading the League through numerous military campaigns including the Cleomenean War and the Social War.
Sicyon's theatre, built by Aratus' father
Coin of Antigonus Gonatas, king of Macedon
The hill on which the Acrocorinth stood
Late 17th-century print: Aratus in combat