Western Civilization. Ancient to early modern history questions

I need at least 3-4 paragraphs for each of the questions. 1.With the collapse of the Carolingian Empire after the Treaty of
Verdun, Europe became an easy target for foreign invasions. Describe the
various assaults on Western Europe. What impact did the barbarian
invasions have on medieval Europe? 2. What were the political, religious, and economic results of the Crusades? Which do you consider most important and why? 3. How did the responsibilities of the nobility differ from those
of the clergy and the peasantry in the High Middle Ages? What did each
social class contribute to the stability of society? 4.How did the Hundred Years’ War contribute to the growth of
nationalism and the centralization of political power in both France and
England? 5.What
were the principal effects of the European voyages of “discovery”? Do
you think these effects were, on the whole, positive or negative?