Read this: Modern historiography on the period has reached a consensus between the two extremes of innovation and crisis. It is now (generally) acknowledged that conditions were vastly different north and south of the Alps, and "Late Middle Ages" is often avoided entirely within Italian historiography. The term "Renaissance" is still considered useful for describing certain intellectual, cultural, or artistic developments, but not as the defining feature of an entire European historical epoch. The period from the early 14th century up until – and sometimes including – the 16th century, is rather seen as characterised by other trends: demographic and economic decline followed by recovery, the end of western religious unity and the subsequent emergence of the nation state, and the expansion of European influence onto the rest of the world.

Which mountain range isn't seen as a dividing line when considering conditions during the Middle Ages?
What is the answer? (If it cannot be answered, return "unanswerable")
unanswerable