What is occlemency?

What conclusions can be reached based on a study of the Han and Roman empires? What area did the crusaders hope to control? What factors made the culliman diamond so famous? Where does the name Cohen originate from? How were west africans rounded up for sale as slaves? How did the Romans make mosaic? In what years did March 11 land on a Wednesday? What is the spreading of one culture to another called? Which European historical periods are in proper chronological order? What is the origin of the name kerkendal? Who invented the chisel plow? How did Kublai Khan maintain control of China? What is the origin of the surname Voss? What was clothing made of in the 1600's? What future tense is civilization? What was not a problem faced in the roman empire as it started to weaken after the period of pax romana? What does 'of yore' mean? How many years ago was 1984? What are some Interesting facts about the crusades? How long was Otto Von Bismarck Chancellor of Germany?