What types of routes did the black death travel on

Kaffa wasn't the only eastern trading port on the Black Death's path, but Genoa's ships took the blame for bringing the pestilence. Once it hit Europe, the Black Death moved fast, traveling at an average speed of 2.5 miles per day (4 kilometers per day

Explanation:

the lowest among the social higher rank were the working class. this class remained detached to the political progression   of the country and was hostile to the other two classes

an expansion is one of two basic business cycle phases; the other is contraction. the transition from expansion to contraction is a peak, and the changeover from contraction to expansion is a trough.