But Mecca's power, its economy, was based on people making pilgrimages there to worship the idols at the Kaaba. So the Quraysh did not like Muhammad's revelations, and they did not like these early Muslims, and they persecuted them. They killed them, they tortured them. And we saw in 615, the migration of some of Muhammad's followers to Abyssinia, the kingdom of Aksum, modern-day Eritrea in Ethiopia, to escape some of that persecution. Things got worse for Muhammad. We saw in that last video the death of his first wife, and up to that point, his only wife. And this is where we start to see a bit of a turning point for Muhammad and his followers.