Map Geographic plotting of major events within the history of Christianity. World map showing the differing degree of Christian dominance around the world. Map of the Roman Empire at the turn of the first century. Various religions within Europe during the 13th century. Various kingdoms and governed regions during the Western Schism. Regional aftermath of the East-West Schism of 1054. Movements of the Crusades through Europe. Charting the Sunni-Shia split in the Middle East and Northern Europe.