Because, duing the 600's Aksum began to decline primarly because of the arrival of the Muslim invaders. ^^ agreee with this <----- Please and Thank You :)
it helped it spread because when Islam started trading more and more people started to buy what they were selling Arab merchants took Islamic beliefs to new lands
Yes, Islam started in Mecca which was a trade centre in Arabia. People comming to Mecca to trade heared about Islam and spread the word. In Islam trade is encouraged as a way to make profit as taking...
The spread of Islam affected slave trade and worked to eventually end it bit by bit. In Islam to clear some sins committed you will have to free a slave. Islam made it rewarding by God to free slaves...