Why were the crusades a waste of time?

Why were cattle important to the Celts? What are some cities that were important during the middle ages? What Russia city change there name three times? Were peasants who worked land for a lord in medieval Europe a Vassals b Surfs c Fiefs d Knights? What were the three west African empires that became powerful between ad 400 and ad 1586? What was the renissance a rebirth of? What is the best tense to use past perfect tense or past perfect progressive tense? Who invented the longbow? When did Get Medieval happen? Who invented history? Who introduced the classical works of Aristotle to Western Europe? What is Cunniless? How much money did medieval merchants make? How did Sir Galahad get the Holy Grail? The modern era came about in part because of which historical event? What type of normative history graded influences are taking place today? Most buildings in the Middle Ages were made of .? Were does the word coward come from? Where did the style of wearing pants around your butt come from? Life of a merchants in the Middle Ages?