When and how did the fourth crusade end?

Who introduced technology? Why indo europeans migrated? For whom are the continents of the western hemisphere named? Did the Romans build Bath houses to honor Gods? What is the meaning of the name Caryl? What were two reasons for the decline of the Roman Empire? What did men wear in the middle ages? What does it mean when you say someone has met their Waterloo? Why is Aeneas obliged to leave Carthage in Mythology? Who set up colonies in the southernmost part of the Italian peninsula in ancient times? What does the name cort mean? How did the use of iron technology help West African community's grow? How did the last crusade end? What was the first name for jeans? Where does the name Czar originate? What countries were the crusades fought? Feudalism is basically a landed property with sovereignty discuss? What aspects of European society did the church dominate from 1100-1300? Did tensions between western and eastern christians increase after the crusades? When did King Wenceslas look out?