Answer
The year of Pertinax's reign witnessed a series of five emperors, each assuming power in quick succession. Pertinax himself was the first to rule, followed by Didius Julianus, Pescennius Niger, Clodius Albinus, and Septimius Severus. This period, marked by political instability, imperial ambitions, and civil war, ended with the victory of Septimius Severus, who consolidated his power and established the Severan dynasty.