From 1500?
Far earlier than that!
The Muslim corsairs and galleys in the Mediterranean Sea were preying on the northern coast to gather Christian slaves from the 700s.
Do you know what happened to those Christian peoples who refused to submit when the Muslims conquered Syria, Egypt, North Africa and Spain? Dhimmies or slaves.
I avoid mentioning religion. There was a large migration from Spain to northern provinces of Netherlands where the land could be flooded to thwart the Spanish. A majority of European ships were Nederlands until Cromwell put a stop to it. Next stop for these clever, vigorous migrants was New Amsterdam where they owned most of the slave ships in the triangular trade. They had Spanish & Portuguese surnames. I avoid the topic of religion. They weren’t Catholic