Triobol

Argos sat out the early years of the Peloponnesian War under a fifty-year peace treaty with Sparta, but by 420 BC had realigned with Athens, Mantinea, and Elis in a quadruple alliance that Thucydides considered one of the most serious threats to Spartan hegemony of the period. The triobol — a half-drachm denomination — was the workhorse of small-scale commerce and mercenary pay throughout the Argolid during precisely these decades of shifting alliance and intermittent warfare.

Argos suffered a catastrophic defeat at the Battle of the Nemea River in 394 BC, after which Spartan influence over the city fluctuated until the Theban victories of the 370s finally broke it.