

Dio's work is traditionally divided into 80 books, though only a portion survives in its original form.
For detailed research or reading, the following resources are highly recommended: Dio Cassius: Roman History
: Exist mostly as sparse fragments or summaries (epitomes). Dio's work is traditionally divided into 80 books,
: His political thought often leans on Stoic principles, advocating for a "republican spirit" of cooperation between the princeps and the Senate rather than a return to a pure Republic. Structure and Survival Structure and Survival : Surviving largely through the
: Surviving largely through the 11th-century epitomes of John Xiphilinus and the 12th-century works of John Zonaras. Primary Access Points
: The LacusCurtius site hosts the English translation by Earnest Cary, originally published in the Loeb Classical Library .
Cassius Dio’s Roman History ( Historia Romana ) is a monumental 80-volume work covering approximately 1,000 years, from the legendary arrival of Aeneas in Italy to 229 CE. Writing in Ancient Greek, Dio spent 10 years researching and 12 years composing his history while serving as a high-ranking Roman senator and two-time consul.