“In the twentieth century, for the first time, there was in the world a universal religion–the Christian religion. Christianity acclimated itself in every continent and in almost every country. In many areas that hold might be precarious, and its numbers small, yet in country after country the Christians evinced the power to be a dynamic minority. It took root, not as a foreign import, but as the Church of the countries in which it dwells.” With those words, historian Owen Chadwick updated Bishop Stephen Neill’s classic history of Christian missions. By the end of the twentieth century, the Christian missionary movement had reached around the globe. Still, the missionary challenge looms larger than ever before.