Answer:
Spread Islam.
Step-by-step explanation:
Islam religion spread in the regions of the Middle East. Arabs refer to an ethnic group who speaks Arabic language. Many Arabs followed Islam and were accountable for spreading through conducting trades. Arabs invasion in the older empires led to the founding of the Arab Empire. The Empire conquer the lands of unbelievers of Islam and convert them. The Empire ruled by the successors of Mohammed called Caliphate.