One of the positive effects of the Crusades was .?

Where did the term 40 Winks originate? Did Caesar have any other names? How many years has it been since 1900? What did plebeians wear? Where does the surname Chavarria originate? What were some of the major political flaws of the Roman Empire? What are the accomplishments of hypatia? What civilization began in the country that is now known as Iraq? What the name knight of the round table? How is the Trojan war important to civilization? When does 22nd century start? When did scientific exploration begin? What was the period of peace that began with the rule of Augustus called? How has the sierra Madre occidental formed? The religions that Romans had the most difficulties with were? What did the roman army do in training? What did Charlemagne take over in the late 700's or the early 800's? Why did the European rulers promote voyages? Who was the salidin? Which city is called the Queen of the Baltic?