Polybius

Polybius
The Stele of Polybius, possible representation of the man
Born	c. 200 BC Megalopolis, Arcadia
Died	c. 118 BC
Nationality	Greek
Fields	History
Known for	The Histories, events of the Roman Republic, 220–146 BC
Influenced	All historians of the Roman Republic during and after his time

Polybius (/pəˈlɪbiəs/; Greek: Πολύβιος, Polýbios; c. 200 – c. 118 BC) was a Greek historian of the Hellenistic period noted for his work, The Histories, which covered the period of 264–146 BC in detail. The work describes the rise of the Roman Republic to the status of dominance in the ancient Mediterranean world and included his eyewitness account of the Sack of Carthage in 146 BC. Polybius is important for his analysis of the mixed constitution or the separation of powers in government, which was influential on Montesquieu's The Spirit of the Laws and the framers of the United States Constitution.

Polybius was born around 200 BC in Megalopolis, Arcadia, when it was an active member of the Achaean League. His father, Lycortas, was a prominent, land-owning politician and member of the governing class who became strategos (commanding general) of the Achaean League. Consequently, Polybius was able to observe first hand the political and military affairs of Megalopolis. He developed an interest in horse riding and hunting, diversions that later commended him to his Roman captors. In 182 BC, he was given quite an honor when he was chosen to carry the funeral urn of Philopoemen, one of the most eminent Achaean politicians of his generation. In either 169 BC or 170 BC, Polybius was elected hipparchus (cavalry officer), an event which often presaged election to the annual strategia (chief generalship). His early political career was devoted largely towards maintaining the independence of Megalopolis.