Were slaves from Africa Muslims

Answer 1

Assuming that you are talking about the Trans-Atlantic Slave Trade (the taking of African Slaves to European Colonies in the Americas) -- roughly 10-20 million people, most of those slaves were Animists whose religions would have resembled Voodoo or Santeria. There were small minorities of Muslims, but most European slave traders, especially the Spaniards and Portuguese, avoided ports in northern Africa where most slaves were Muslim due to their hatred of Muslims.

If you are referring to the Trans-Saharan Slave Trade (the taking of African Slaves to the Islamic Empires in North Africa, Spain, and the Middle East) -- roughly 5-10 million people, these groups were almost exclusively Non-Muslim, specifically because it was against Islamic Law to enslave fellow Muslims. Again, these people were likely Animists whose religions would have resembled Voodoo or Santeria. However, most of the African Kingdoms from which the Arab Slavers would have purchased these slaves would have been Islamic countries. (This is in contrast to the ports for Europeans which usually put the Europeans in contact with Non-Islamic African Kingdoms.)

Answer 2

Not all of them were Muslims; in fact, many were animists (they worshiped spirits). But we do know that a number of African slaves did practice Islam; some sources say that it was as many as 20%. When these slaves were brought to the US, however, their masters usually forced them to convert to Christianity, whether they wanted to become Christian or not.

Answer 3

majority