Whenever a Muslim brings up the Crusades, I have to laugh to myself. Christians have done horrible things, including in later crusades against Constantinople and the Cathars in particular. However, get this. The Islamic State militants said, "Safety for you crusaders is something you can only wish for" right before butchering Egyptian Christians. It seems that many Muslims haven't taken a single history class. If they had, they would have known that Christians existed in Egypt for 400 years before Islam. (Heck, they were even around to murder Hypatia, perhaps the last major ancient female philosopher.) It was the Muslims who were the "Crusaders"...yet almost nobody will admit to this. Muslims instigated a merciless war against Christian Egyptians until they were overcome and under Islamic domination. They did this to people across the world, from Spain to India...massacring any who resisted. They tried to destroy the Byzaintine Empire as well (which