During 1200 to 1450, Timbuktu had the largest library in the world and it held hundreds of thousands of books. Their library brought them great wealth and prosperity. However, after Chris Columbus and his Spanish explorers discovered the Americas and eventually started the Columbian Exchange, Africans were greatly disadvantaged. The Europeans captured millions of West Africans and transported them to the Americas as slaves. Timbuktu was located in West Africa. Their library is their biggest token of wealth after all the horror all the enslaved West Africans went through.
That slaves would take its jobs at lower wages is people in border states.
The spread of Islam changed many countries. The religion quickly spread and many countries of power classified themselves as Muslim countries. This united the countries in a religious manner and all of the Muslim countries were led and ruled by a khalifah. The united rule helped Muslims achieve victory over battles that would change the face of the Earth.
Answer:
I believe it is naturalization