Definition: In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
Input: This man sent three divisions of the Roman army against the Adiabene peoples of Northern Mesopotamia and also conquered the city of Nisibis where he established his main headquarters. An avid military campaigner, this man increased the number of legions to 33, increased the annual salary of solders from 300 to 500 denarii and even disassembled the Praetorian Guard into his own defense, the (*) Pannonian Legions. Early on in his reign, he waged a war with the Parthian Empire which was quickly ended during the sack of their capital, Ctesiphon. This man was able to defeat Pescennius Niger at Issus in 194AD in the Roman Civil War during the reign of this man's predeccessor, Didius Julianus who has earlier claimed Rome after the death of Pertinax. Born in the city of Leptis Magna in modern-day Libya, FTP, identify this father of Geta and Caracalla; Roman emperor from the years of 193 to 211 AD and founder of a namesake dynasty
Output:
History