id author title date pages extension mime words sentences flesch summary cache txt en-wikipedia-org-9339 Roman Empire - Wikipedia .html text/html 38958 4673 68 But despite this gesture of universality, the Severan dynasty was tumultuous—an emperor's reign was ended routinely by his murder or execution—and, following its collapse, the Roman Empire was engulfed by the Crisis of the Third Century, a period of invasions, civil strife, economic disorder, and plague.[21] In defining historical epochs, this crisis is sometimes viewed as marking the transition from Classical Antiquity to Late Antiquity. During the reign of Augustus, a "global map of the known world" was displayed for the first time in public at Rome, coinciding with the composition of the most comprehensive work on political geography that survives from antiquity, the Geography of the Pontic Greek writer Strabo.[40] When Augustus died, the commemorative account of his achievements (Res Gestae) prominently featured the geographical cataloguing of peoples and places within the Empire.[41] Geography, the census, and the meticulous keeping of written records were central concerns of Roman Imperial administration.[42] ./cache/en-wikipedia-org-9339.html ./txt/en-wikipedia-org-9339.txt