
Events 190s – Rome’s Five Emperors
Rome’s Year of the Five Emperors Events 190 – 191: Warlords across China launches a campaign against Dong Zhuo. 193: Year of the Five Emperors of Rome: Pertinax, Didius Julianus, Pescennius Niger, Clodius Albinus and Septimius Severus. 193 – 211: Reign of the Roman emperor Septimius Severus. Cleomedes teaches that the moon does not glow on its own, but rather reflects sunlight.