Paul F. Crawford debunks four myths about the Crusades :
Myth #1: The crusades represented an unprovoked attack by Western Christians on the Muslim world.
Nothing could be further from the truth, and even a cursory chronological review makes that clear. In a.d. 632, Egypt, Palestine, Syria, Asia Minor, North Africa, Spain, France, Italy, and the islands of Sicily, Sardinia, and Corsica were all Christian territories. Inside the boundaries of the Roman Empire, which was still fully functional in the eastern Mediterranean, orthodox Christianity was the official, and overwhelmingly majority, religion. Outside those boundaries were other large Christian communitiesnot necessarily orthodox and Catholic, but still Christian. Most of the Christian population of Persia, for example, was Nestorian. Certainly there were many Christian communities in Arabia.
By a.d. 732, a century later, Christians had lost Egypt, Palestine, Syria, North Africa, Spain, most of Asia Minor, and southern France. Italy and her associated islands were under threat, and the islands would come under Muslim rule in the next century. The Christian communities of Arabia were entirely destroyed in or shortly after 633, when Jews and Christians alike were expelled from the peninsula. Those in Persia were under severe pressure. Two-thirds of the formerly Roman Christian world was now ruled by Muslims.
What had happened? Most people actually know the answer, if pressedthough for some reason they do not usually connect the answer with the crusades. The answer is the rise of Islam. Every one of the listed regions was taken, within the space of a hundred years, from Christian control by violence, in the course of military campaigns deliberately designed to expand Muslim territory at the expense of Islams neighbors.
See also: Thomas F. Madden, ” Inventing the Crusades ”
(Via: Insight Scoop )