Who do historians consider the greatest historians?

When did the first Europeans begin to explore Alaska? Which cultures traded with each otherand what did they trade? How did irrigation lead to civilization? How is Charlemagne a barbarian? What caused human expansion? What was livy's year? What statement describes the way the Islamic Empire treated conquered peoples throughout the Middle East North Africa and Europe? Why were the Dutch so successful during the 16th and 17th century? What hardships did medieval craftsmen face? How did religious wars reshape Europe from the mid-sixteenth century through the seventeenth century? What century is AD 705? What caused the trolls' downfall? How was a modern calendar developed? What are all the capitals of the Roman Empires? What was Clovis historical significance? What is the difference absolute and relative chronology? How much time has elapsed between 580 BC and AD 350? Is the year 2000 the correct year to start the new millennium? Did William Wallace marry? How did the north-west rebellion in 1885 contribute to the development to our nation?