Respuesta :

Answer:

1. Muslims were unified

2. The Message of Islam

3. The splendors of Baghdad

4. The treatment of conquered people

5. Empire of Caliphs

6. The First Caliph

7. Military

8. Harshness of Persia and the Byzantines

9. Weakness of Persia and the Byzantines

10. Muslims in Europe

Explanation: