What is gaysm?

Who the Great is known as the greatest European ruler after Charlemagne? Where did the word crescendo come from? How old is the colesieum? What happened in 1099 with the crusaders? Who is the cahill that started it all? Which European nations remained largely agricultural? Who inveted the toiliet? Who was the founder of the House of Capet? Who was the first man to propose the Asian migration hypothesis that is widely accepted today? Who was the leader of Rome in 133 BC? What established the legitimacy of the Papal States? What is the past tense of the verb begin? Which was a long term effect of building railroads across the west? What did the Romans think about what is in space? What word means 300 years? Was there sandpaper in the 1700s? What year did slavery start and and end? How did this painting differ from most other medieval art? What led to separatists movements in eastern Europe in the 1990? Who made the calendar?