Answer:
Weakened Popes (Pope failed Christianity who said could kill in the name of God and simply failed)
-Rift between Muslims and Christians
-Intolerance and prejudice by Christians left bitter legacy hatred
-Revival of learning: Crusaders return to Europe and cause cultural diffusion of Muslim achievements and rediscovery of more Greco-Roman art, ideas, beauty preserved by Muslims led to 12th century Renaissance
Explanation: