Battle of Ctesiphon (198) — the same event in Cassius Dio, Historia Augusta and Zosimus

Cassius Dio: Severus took Ctesiphon, plundering and massacring, with 100,000 captives; Vologaesus did not pursue and withdrew for lack of supplies…

What each source says

Zosimus, New History · AD 197 · Ctesiphon

In his Persian (Parthian) campaign Severus takes Ctesiphon and Babylon and conquers the tent-dwelling Arabs.

Having done this, and regulated the army, he marched against the Persians, and in this expedition took Ctesiphon and Babylon, over-ran the Arabians, called…
Location: Zos. 1 (1814 영역) p.9

Cassius Dio, Roman History · AD 198 · Ctesiphon

Severus took Ctesiphon, plundering and massacring, with 100,000 captives; Vologaesus did not pursue and withdrew for lack of supplies

Later, upon capturing Ctesiphon, he permitted the soldiers to plunder the entire city, and he slew a vast number of people, besides taking as many as a hundred…
Location: 76(75).9.4

Historia Augusta · AD 198 · Ctesiphon

As summer ends he invades Parthia, defeats the king, reaches Ctesiphon, and takes the city in early winter

Aestate igitur iam exeunte Parthiam ingressus Ctesiphontem pulso rege pervenit et cepit hiemali prope tempore, quod in illis regionibus melius per hiemem bella…
Location: Sev. 16.1

Where the sources differ

A and B are two of the sources listed above.

On what pointSource ASource BWhat differs (in Korean)
YearHistoria AugustaZosimus, New Historya는 198, b는 197
OutcomeCassius Dio, Roman HistoryHistoria Augustaa는 포로 10만과 철수 기록, b는 초겨울 함락

Place: Ctesiphon

Show on the map — open Cassius Dio, Roman History