Starting in 96 AD, the Roman empire was ruled by the [[Five Good Emperors]], who were chosen for talent rather than family connections. This ended when the last good Emperor [[Marcus Aurelius]] had his son [[Commodus]] succeed him. In truth, for most of Marcus Aurelius' reign he was involved in warfare on the frontiers of the Empire, so some would say the Pax Romana ended when war with Parthia broke out in 162 AD.
'''During the Pax Romana:'''
* The system of [[road]]s greatly improved