Since we’re discussing the spread of Semitic religions, I have to object to the misconception that Islam was spread by military conquest, or by “raw force”.
Muslim armies did not put people to the sword and say “Convert or Die!” Not only would this be an innefectual means of spreading the faith (no-one would truly believe if the conversion was made under duress), but there are numerous verses in the Quran that expressly forbid such treatment of non-believers.
“There shall be no compulsion in religion” is one verse that springs to mind. Another is:
“Oh, unbelievers! I do not worship that which you worship. Nor do you worship that which I worship. You have your religion, and I have my religion.”
Forced conversion is therefore completely counter to Islamic doctrine.
Similarly, non-muslims are guaranteed freedom of religion under Sharia, or Islamic Law, and their places of worship are to be respected. This applies not only to Christian and Jewish citizens of an Islamic state, but to those of all faiths. Indeed, the Jewish population of Moorish Southern Spain flourished under Muslim rule, free of the persecution they had suffered at the hands of Christian Kings.
Even if you ignore the above and believe that North Africa and Spain were converted forcibly, what about Malasia, Indonesia, The Maldives, Zanzibar, Ethiopia, South Africa and China? All of the above countries have indiginous populations which are either overwhelmingly Muslim (like Malasia) or have a siginificant and long-standing Muslim minority (like South Africa and China). None of these countries were ever invaded by Muslim armies. The fact is that contact through trade, not war, was what converted these countries, but the myth of Islam being spread by the sword is a pernicious one.
Sorry, but I don’t have any cites to hand at the moment, as I’m writing this at work. I’ll dig out my copy of “The Cultural Atlas of Islam” as soon as I get home.
Oh, and sorry for the massive hijack. Very bad mannered of me.