Now, the Quraysh continued to persecute Muhammad and the early Muslims in Mecca. We have some of them that are now in the kingdom of Aksum. And Muhammad learns that there's a community, a growing community of Muslims in the town of Yathrib who are starting to follow Muhammad or his revelations, and they come to him and they invite him to come to Yathrib because there's actually a lot of fragmentation, there's warring tribes, and they're seeking an outsider to help bring some peace and authority to this place where there is already a burgeoning Muslim community. So in 622, you have the famous migration of Muhammad and his followers to Yathrib, which is renamed Medina, and Medina literally means the city. And from then on, it really becomes the base of Muhammad and the early Muslims. And Muhammad, once he's in Medina, he is no longer just a prophet. He isn't just continuing to have his revelations, according to Islamic tradition, but he essentially rules over Medina and governs it.