For many Europeans, Europe today is synonymous with the "Christian Occident". But like so much of what has shaped our civilization, Christianity also comes from the Orient. And it is not the only "one-faith belief" that shapes the continent: even before Christianity, Judaism spread throughout the Roman Empire. And on the Iberian Peninsula Muslim Moors rule from the 8th to the 15th century. But that is not enough; the faith community of Christians is breaking up as well.