Please answer each of these questions in two to three sentences.
What was the importance of the city of Baghdad?
What was the House of Wisdom, and what was the intellectual project pursued there?
How did the Spanish cities of Córdoba and Granada compare to other cities in Western Europe?
What was the Christian motivation for the Crusades and why was the First Crusade so successful?
What military power put an end to the Golden Age of Islam and why was this power such a threat to the Islamic world?