[Rand al Thor]

Well, yeah.

Judasim was around first, then with Christ's coming christianity was born. Then about 600 years later, Mohammed claimed to have a vision of either Jesus or Mary and started Islam, using it to unite/conquer arabia and what was much of persia. It's all based on the old testament but diverges from the new on of fairly fundamental points, such as the virgin birth. Muslims think it's fairly bizarre that even an incarnation of a God should come from a woman.

[Mathwiz6]

Ok, good, the general idea is right...

Some people seem to think Islam was around a lot longer...

[Aardwolf]

Actually it was Gabriel. I think.