History of the Roman Empire disputes about the supreme authority, this finally formalised a peaceful succession of the emperor: in each half a "Caesar" would rise up to replace the "Augustus" and select a new "Caesar". On May 1, 305, Diocletian and Maximian abdicated in favour of their "Caesars". Galerius named the two new "Caesars": his nephew Maximinus for himself, and Flavius Valerius Severus for Constantius. The arrangement worked well under Diocletian and Maximian and shortly thereafter. The internal tensions within the Roman government were less acute than they had been. In "The Decline and Fall of the Roman Empire", Edward Gibbon notes that this
Legacy of the Roman Empire those colonies were connected by another important legacy of the Roman Empire: the Roman roads. Indeed, the empire comprised more than of roads, of which over were stone-paved. The courses (and sometimes the surfaces) of many Roman roads survived for millennia. Many are overlaid by modern roads, like the Via Emilia in northern Italy. The road networks from the empire's territorial peak in 117CE are closely linked to cities having greater modern-day economic activity, particularly in European areas since they did not abandon wheeled vehicles in the latter half of the first millenium. In the mid-18th century, Roman architecture inspired