What words would describe Charlemagne?

Why europeans came to the Americas in the 1500s? What made the Mongols so formidable? How modern databases evolved from file systems? The true explorers of the Western mountains who opened new routes for settlers were the .? What century was 910? Did the Romans take medicine from Greece? How far can a trebuchet throw? How did slavery impact the west Africa societies? What was the main function of the central government in early civilizations? What were Charlemagne most notable achievements? What factors caused the fall of Mongol and empire? Who were the key players during the first crusade? Did Otto Von Bismarck single-handedly achieve German unification? How did Billy become an accepted form of William? When were the first windmills? If today is 2007 what year was it 300 years ago? What were the lesser lords in a feudal system known as? Did one Doctor Crapper invent the toilet? Which century did the year 1915 occur? Why did the 5th crusade or the Council of Lateran end?