Cassius Dio

Lucius Cassius Dio
Born	155 AD Nicaea, Bithynia
Died	235 AD (aged 80) Bithynia
Occupation	Historian, Senator, Proconsul, Consul
Nationality	Greek
Subject	History
Notable works	History of Rome

Cassius Dio or Dio Cassius (/ˈkæʃəs ˈdiːoʊ/; c. 155–235) was a Roman statesman and historian of Greek origin. He published 80 volumes of history on Ancient Rome, beginning with the arrival of Aeneas in Italy. The volumes documented the subsequent founding of Rome (753 BC), the formation of the Republic (509 BC), and the creation of the Empire (31 BC), up until 229 AD. Written in Ancient Greek over 22 years, Dio's work covers approximately 1,000 years of history. Many of his 80 books have survived intact, or as fragments, providing modern scholars with a detailed perspective on Roman history.

Dio was the son of Cassius Apronianus, a Roman senator, and he was born and raised at Nicaea in Bithynia. Byzantine tradition maintains that Dio's mother was the daughter or sister of the Greek orator and philosopher, Dio Chrysostom; however, this relationship has been disputed. Lucius is often identified as Dio's praenomen, but a Macedonian inscription, published in 1970, reveals the abbreviation, "Cl.", presumably Claudius. Although Dio was a Roman citizen, he wrote in Greek. Dio always maintained a love for his hometown of Nicaea, calling it "his home", as opposed to his description of his villa in Italy ("my residence in Italy").

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