Herodotus puzzled over the Cynurians. He called them autochthones — sprung from the earth itself — yet also labeled them Ionians, which struck later scholars as contradictory. The more likely answer is that they were Pelasgians, among the pre-Greek peoples who inhabited the peninsula before the Dorian migrations reshuffled everything. Their coastal position confused ancient observers into placing them in the Ionian camp, the same way Pelasgians living along the Gulf of Corinth were absorbed into the Achaean identity. Whatever their ethnic designation, the Cynurians were their own thing: a semi-barbarous, predatory tribe clinging to the eastern slopes of Mount Parnon, never cohering into a city-state, never forming a political body in the Greek mold. Their mythical ancestor, Cynurus, gave them their name. Beyond that, history is largely silent on what they built, worshipped, or traded. What we know is what was done to them.

When the Dorians swept through the Peloponnese, the Cynurians were absorbed into the Argive sphere. Reduced to Perioeci — dependent subjects, not slaves, but not citizens — they lived under Argive dominance for generations. Then Sparta began its long climb. By around 900 BCE, Echestratus, son of the Spartan king Agis, had seized Cynuria. The hold didn't last; Argos took it back. The territory traded hands across centuries without a decisive resolution. Then came 546 BCE and a solution that only the ancient Greek mind could devise as civilized: both sides would each field exactly 300 champions. The survivors would determine ownership. When the dust settled, Sparta had won, though the battle was close enough that the argument resumed within a generation. What finally locked in Spartan control was not that duel, but the crushing victory of King Cleomenes I over Argos near Tiryns, shortly before the Persian Wars. After that, Cynuria flew the Spartan flag without serious challenge — for a while.

The opening of the Peloponnesian War in 431 BCE brought a new chapter. Athens had expelled the Aeginetans from their island, and Sparta, ever eager to install a useful buffer population, settled the refugees in Thyreatis — the core agricultural plain of Cynuria. Two towns, Thyrea and Anthene, were handed over to these exiles to rebuild their lives. For eight years they managed it, even beginning construction of a seaside fortress. That project caught the attention of Athens. An Athenian fleet descended on the Thyreatis coast, found the Aeginetans at work on the fortifications, and gave chase when they retreated to the upper city — ten stadia inland from the shore. Athens took Thyrea, destroyed it, and enslaved its inhabitants. The exiles' second home vanished in a morning.

After the dust of classical-era warfare settled, Cynuria's fate fell to a Macedonian king rather than a Greek assembly. Philip II — father of Alexander the Great — returned the Thyreatis to Argos and extended Argive territory further along the coast, as far as Glympeis and Zarax. The gesture was geopolitical: keeping Argos strong enough to counterbalance Sparta suited Macedonian interests. Yet even this royal redistribution couldn't end the quarrel. Pausanias, the Greek traveler writing in the second century CE, noted that Argos and Sparta were still bickering over the ancient boundary — a dispute that had outlasted every empire that tried to resolve it.

Today the region carries two names layered across each other like geological strata. Kynouria is the modern administrative form, established as a province in the nineteenth century before being dissolved in 2006 and reorganized into the municipalities of North and South Kynouria. Beneath that name lies an older one: Tsakonia, after the Tsakonians, whose language is not modern Greek but a surviving branch of ancient Doric Greek — one of the most archaic spoken dialects still alive anywhere. To hear Tsakonian is to hear, faintly, the language of the very conquerors who once claimed this coast. The slopes of Mount Parnon still define the western edge of the region; the Argolic Gulf still glitters to the east. The land that Argos and Sparta spent centuries fighting over now draws hikers and historians, its ancient towns — Thyrea, Anthene, Neris, Eva — reduced to ruins and footnotes, but the terrain that made them worth fighting over remains unmistakably itself.