Through the efforts of Western missionaries and home-grown churches and evangelists, Christianity has taken root in Africa with astonishing speed, to the point that Africa is now considered one of the heartlands of world Christianity. In a surprising reversal of the nineteenth-century missionary tradition, Africa no longer merely receives missionaries but is also the source of evangelization as African-influenced Christianity spreads around the new African diaspora. While Africans have wholeheartedly appropriated the symbols, scriptures, and traditions of historical Christianity elsewhere,...