when did the europeans start using africans as slaves?

[Heman the Seaman]

Probably because England, being the imperial pricks of Europe, in their exploration of the world, found black natives living in, what the English thought of, squalor, like in Africa, and appeared so barbaric and uncivilized that England thought the black natives could be thought of as not having a soul, being as black as they are, and could get the nasty Roman Catholic Church to decree them non-human and then sold and used as animals, because, to the English, they were animals, as dumb and backwards as the corrupt imperialist English morons were and are, thought. But slavery as always existed where an imperialist country conquers another, which is what England did to South Africa, and makes the conquered into slaves.