How many years since 1950-2008?

How did the Mongol Empire rise? What was the name of the class of Roman society that included farmers artisans and merchants? Where did the last name wesley originate from? Where they any poor highwaymen? What was Charlemagnes impact on Europe? Who created a Christian Roman Empire in the East with the new capital of Constantinople? Who found coal in the first place? When was the word butt first used? What does the name mcclain mean? Was the wheel invented or discovered? How does the calamitous 14th century lead to the renaissance? How did clovis and Charlemagne contribute to the spread of Christianity? What was the economic impact of the crusades? Who was the victor of the crusades? Who ruled Austrian-Hungarian empire? Who wasn't allowed to vote in ancient Rome? What is a serfs food? What are the Terrible Twelve? For how long after the First Crusade did the Europeans hold Jerusalem? How did the breakdown of central authority in Europe lead to the?