What is citadral?

How many years make up an century? Where did the last name Kowalski originate from? What was roman government like? What was the year 38 years ago? What was the Peace of Westphalia? What year was the flushing toilet made? Where does the word carnaval originate? How do historians try to address the bias of all sources? How long have the Dutch used windmills? Why did people went on a crusades? What was the main purpose of the Crusade? How did Europe change after the thirty year war? D H Lawrence believes modern Western society's problems may be traced back to what? How many people died in the third crusade? How did plebeian representation change in the government? It has the distinction of being what? What city did the first crusade reach? What event sparked the crusade? Who was cornwalase? What differences did Lewis and Clark see between the east and the west?