I am using a map to illustrate some long term megatrends in the history of religion. Although the map specifically concerns Islam, many of the same lessons apply to Christianity. The map appeared in Samuel M. Zwemer, The Moslem World (New York: Young People’s Missionary Movement of the United States and Canada, 1907-1908). Samuel Marinus Zwemer (1867-1952) was an exceptionally important figure in the US missionary world at that time. “Sixteen years a missionary in Arabia,” he earned the title... Read more