We know something of the history of the spread of Christianity, but much passed from recorded memory and much was transmitted by tradition whose accuracy has been repeatedly questioned.
Kenneth Scott LatouretteAlthough when Christianity appeared the total population of the planet was only a fraction of that of the twentieth century, most of the earth's surface was quite outside the Mediterranean world, Persia, India, and China.
Kenneth Scott LatouretteChristianity is usually called a religion. As a religion it has had a wider geographic spread and is more deeply rooted among more peoples than any other religion in the history of mankind.
Kenneth Scott LatouretteChristianity emerged from the religion of Israel. Or rather, it has as its background a persistent strain in that religion. To that strain Christians have looked back, and rightly, as the preparation in history for their faith.
Kenneth Scott Latourette