1. Are you talking about North America or South America? If South America then the Spanish, if North America - the Brits - they were the first colonists of Jamestown Virginia which was also the first settlement in North America. First they imported bonded labourers from Ireland to grown their tobacco crops, then decided it was too expensive and started importing slaves, following the examples of the Spanish colonists.
2. I am versed in history, not religion.
3. Africans rounded up the people in central and western Arica to bring and sell them to Dutch traders docked on the west coast of Africa who then brought the slaves to North America to sell them to the Brits.
Why are you asking me these questions?