“Is Europe Christian? It’s a more complicated question than it sounds.”
"...unlike so many other scholars, [author Olivier Roy] emphasizes the difference between Lutheranism (which, with its doctrine of the Two Kingdoms and vocation is 'self-secularizing,' giving religious significance to the secular realm) and Calvinism (which tends to seek Christian rule of the secular order). He also notes the difference between both of these traditions and American Protestantism." - Gene Veith