What happened to the geography of urban culture and economy after the fall of Roman Empire? How and where did cities remain vibrant, even as Europe descended into its so-called Dark Ages?

Rise of the political and the demographic geographers and vibrant cities were the italian and the roman.

Explanation:

The decline of the roman empires was a process of the decline of the western European countries in which the empire was unable to enforce the rules and its vast territories. Romans were also very large sculptors of their environment who directly altered their geography. The expansion of the Europe led to the global map of the word and most comprehensive works on the political geography and development of the demographic studies. The period of the dark ages was that of the middle ages and that asserted the demographic and the cultural deterioration along the western Europe and merged into the age of renaissance and discovery and took place in the 15 the century.