How Many Christians Could Read?

How many Christians by near the end of the New Testament period – say, 100 CE – could read and write? In his intriguing article “Christian Number and Its Implications,” Roman historian Keith Hopkins tries to come up with some ball park figures.

As you may recall, he is assuming that there were Christian churches in about 100 communities in the world at the time (we have references to about 50 in our surviving texts, and he is supposing that maybe there were twice as many as we have any eviden...