The interesting thing, Old Guy, is that both Christians and Muslims revere the same ancient holy books (Old and New Testament) and the same prophets and holy figures. Jesus is greatly revered as a true prophet of God by Muslims and so are the other figures in the Christian pantheon....but then along comes Mohammed and adds new teachings and new books...so Islam is a later offshoot of the Christian and Jewish traditions. Where Islam mainly differs is that it adds on the teachings of Mohammed and makes him the foremost prophet, although Jesus and the others are still quite important figures in the religion. The Jews differ in that they don't recognize Jesus, the New Testament, OR Mohammed, but only the stuff that came before Jesus...so it appears to me that there could be a greater religious gulf between Jews and Christians than between Muslims and Christians, technically speaking.

This, however, does not prevent all 3 of them from fighting wars with each other over religion. ;-)

Ridiculous, isn't it?