These events are from the Bible's events where Muhammad was a prophet of God sent as a messenger of His teachings. Muhammad is the founder of the Islam religion. Arranging these events in the chronological order would be
1. Muhammad received his first message from God while meditating in a cave.
2. Muhammad moved from Mecca to Medina with his followers.
3. Muhammad created the first Muslim community.
4. Abu Bakr became the leader of Islam after Muhammad.