Fall of the Western Roman Empire collapse. Since 1776, when Edward Gibbon published the first volume of his "The History of the Decline and Fall of the Roman Empire", Decline and Fall has been the theme around which much of the history of the Roman Empire has been structured. "From the eighteenth century onward," historian Glen Bowersock wrote, "we have been obsessed with the fall: it has been valued as an archetype for every perceived decline, and, hence, as a symbol for our own fears." The Fall is not the only unifying concept for these events; the period described as Late Antiquity emphasizes the cultural continuities
Historiography of the fall of the Western Roman Empire argues that the severe fall in population left the state apparatus and army too large for the population to support, leading to further economic and social decline that eventually killed the Western Empire. The Eastern half survived due to its larger population, which even after the plagues was sufficient for an effective state apparatus. Archaeology has revealed that from the 2nd century onward, the inhabited area in most Roman towns and cities grew smaller and smaller. Imperial laws concerning "agri deserti", or deserted lands, became increasingly common and desperate. The economic collapse of the 3rd century may also be evidence