Christianity was born from within the Jewish tradition, and Islam developed from both Christianity and Judaism. While there have been differences among these religions, there was a rich cultural interchange between Jews, Christians, and Muslims that took place in Islamic Spain and other places over centuries.
Who is the leader of the Protestant Church?
Martin Luther, often called the father of Protestantism, fundamentally changed the Christian world through his force of will and new ideas. He tried passionately to reform the Catholic Church.