TheKing is right on and you guys are just playing stupid date games...

Christianity started at the time of Creation. Sure, it wasnt' called Christianity until about 2000 yrs ago, but the history of the religion goes back to the beginning of time.

If you follow the history or the groups of people who will become the Jews, Christians, and Muslims, you will see that they all have the same roots and a history that goes back before Christ and before Muhamed.

Sure, technically Islam and Christianity were not yet around, but that's like saying the USA didn't have a history with Great Britton during the early years of our country because we hadn't yet called it the USA...