Very interesting. I should probably note that Christians of the day at first believed Islam to be a Christian Heresy, and not a separate religion. I’m sure this is partly why:

I have been tracking the ancient “lost gospels” through the Middle Ages, when these alternative scriptures continued to exercise a remarkably wide influence. This was especially true in the cultures of Islam, which emerged in a largely Christian world fascinated by apocryphal writings…

Read it all: THE GOSPELS OF ISLAM

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