My understanding is that they merged Christian concepts with their then current religious beliefs. In other words they worshiped many gods. As I understand it, and correct me if I'm mistaken, Christianity requires an exclusive belief in Jesus. Or in his own words, "“I am the living God, The Way and The Truth and The Life; no man comes to my Father but by me alone.”
That we would be practicing Christianity as we are today without slavery/colonization is extremely unlikely.
Also, the reason that the majority of Southern Africa is Christian today is not due to a (debated) link between the Kingdom of Kongo and Christianity.
You are conflating so many things right now that it is not even funny. Why people became Christian during slavery in the USA is completely different as to why the people of Kongo and Angola became Christian.
Some of the slaves in the USA were already Christian when they got to the USA. If you look at many of the slaves in South America many of them were Catholic when they got there, because they were Catholic in their homelands. So the issue were the animist people and the Muslims. There were undoubtedly forced conversion of many people to Christianity in Central and South America, because Spain had just come off of the inquisitions in Spain and were certainly cleansing their colonies of those cursed followers of Mohammad and the Jews. Don't forget that some of the slaves taken the Americas were also Jews, because the Lemba people of Southern Africa were also enslaved.
The slaves in the USA reasons for converting to Christianity were totally different. It for the most part happened as a run up to the Civil War when the "Second Great Awakening" was occurring. So African Americans had legitimate reasons for converting to Christianity at that time, because many Northern abolitionist were opposed to slavery were strongly Christian and were pushing for the conversion of the slaves.
Christianity in Africa was different depending upon what region that people were in. Modern day Ethiopia had it first in the entire World. Bible Gateway passage: Acts 8:26-40 - English Standard Version
The next group of Africans to be converted were in Kongo and Angola. Then from what I remember some North Africans were converted as part of the Spanish Inquisitions. The rest of the Africans received it at varying times from the Portuguese and later on the English.
what do you think the slave masters used to indoctrinate our forefathers so willingly to STAY ENSLAVED....First they broke their spirits then their minds... What part of 
Every fukking time it's some religious fukking nutjob trying to lecture me on how I feel... fukk you fam...
? Its called the fear of death and the unknown,basic human survival instinct. You would rather assume they captured the slaves,beat them a little,and immediately taught them the bible and thats what made them not fight back.Couldn't have been the cannons and the muskets etc
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. Whites aren't properly equipped to understand and decode the bible anyway. Through lack of knowledge of self slaves lost the ability as well. If they hadn't they would have realized the bible was about them,it would be an empowering book for the slaves. You can't even see somebody like Nat Turner,MLK as modern day prophets,thats too deep for you


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