But nevertheless, Christianity continues to spread. More and more Romans are becoming Christians. And it's going to take the Emperor Constantine in the year 312, where it said he had a vision of a cross in the sky. He put the cross on all of his soldiers' gear and he won a big battle. And then eventually he accepted Christianity. And in fact, in the year 380, Christianity is going to become the official religion of Rome. Now, of course, I've left out a million things, but that's the basic idea.