Triobol

The Aetolian League reached its political peak in the early second century BC, controlling the Delphic Amphictyony and projecting power across central Greece after decisive involvement in repelling the Galatian invasion of 279 BC. The League's federal coinage, including this denomination, functioned as a genuinely unified monetary instrument across member poleis — unusual in a Greek world where civic pride typically demanded local types.

By the 180s BC, Roman pressure following the defeat of Macedonia at Cynoscephalae had begun dismantling Aetolian influence. Coinage of this type likely tapered off not from monetary policy but from the progressive stripping of League authority by Rome across the mid-second century.