Five and Seven are incorrect, they should be reversed. The Book of James is a very practical epistle written by one of the half brothers of Jesus and the Hebrews wrote <span>an epistle that was possibly written by Paul but which differs in structure and pattern from his others.</span>
The leaders who spread Islam after Muhammad's death were Abu Bakr, Umar, Uthman, and Ali. If you want the answer from a website, I suggest going here
--> http://peopleof.oureverydaylife.com/led-islamic-world-after-muhammad-died-7743.html <-- I hope this answer helps you.
It would be challenging because being a slave does not allow anyone to do anything they would like to do or have any freedom
