Cassius Dio

c. 165 CE–c. 235 CE · Rome

Cassius Dio (c. 165 - c. 235 CE) was a Roman senator and historian of Greek background from Bithynia in Asia Minor. Writing in Greek, he composed an enormous "Roman History" in eighty books, tracing Rome from its legendary founding down to his own time. Large portions survive, and his account is a principal source for the late Republic and the early Empire, valued especially for the perspective of a senator who himself held high office.

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RomeרומאItaly

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About Rome

Rome, on the Tiber in central Italy, grew from an Iron Age settlement into the capital of the Roman Republic and then of an empire that by the 1st century CE ruled the whole Mediterranean. Its Jewish community, attested from the 2nd century BCE, is among the oldest in Europe. Christian tradition holds that the apostles Peter and Paul died there, and the city became the seat of the popes. After the Western Empire ended in 476 it passed to Gothic kings, to Byzantium and then to papal rule as capital of the Papal States, until it became the capital of unified Italy in 1871. Vatican City, independent since 1929, lies within it.

In Rome at the same time

Appian of Alexandria, Aelius Herodianus, Aulus Gellius, Galen, Lucius Verus, Herodian

Across the traditions, in Rome at the same time

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In the same place & time

Sages whose lives overlapped with Cassius Dio’s in the same cities, drawn from their recorded journeys.

Across the traditions

In the same tradition

Appian of Alexandria, Aelius Herodianus, Aulus Gellius, Galen, Lucius Verus, Herodian, Aelian, Geta, Porphyrius

The world in their lifetime

Thinkers and teachers of other traditions whose lives overlapped with Cassius Dio’s — a glimpse of the wider world they lived in. Drawn purely from recorded birth and death years.