reforms. Meanwhile, the Achaean League under the command of Aratus of Sicyon was trying to unite all of the Peloponnese. Upon hearing of Leonidas' death, Aratus began attacking the cities of Arcadia, which bordered Achaea. Plutarch says that Aratus made these moves to discover Sparta's inclinations.

In 229 BC, the cities of Tegea, Mantinea,