Dio's work is traditionally divided into 80 books, though only a portion survives in its original form.
: Exist mostly as sparse fragments or summaries (epitomes). Dio Cassius: Roman History
: The Internet Archive provides digitized versions of all 9 Loeb volumes for in-depth study. Cassius Dio — Epitome of Book 73 Dio's work is traditionally divided into 80 books,
: Surviving largely through the 11th-century epitomes of John Xiphilinus and the 12th-century works of John Zonaras. Primary Access Points Dio Cassius: Roman History
For detailed research or reading, the following resources are highly recommended:
: 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