Between 279 and 229 B.C., the Aitolian koinon, a federation of mountain cantons in west central Greece, expanded to incorporate many of the neighboring lands and peoples lying between the Adriatic and Aegean Seas. This new political configuration contributed to the development of modern systems of federal democracy based on proportional representation. Despite these institutional advances, the Aitolians and their polity are reviled in the ancient historical tradition, which views them as backward, semi-barbarous brigands.

The Politics of Plunder is the first...