"because whites thought they were better then everyone else" Actually, when White Europeans encountered Black Africans, the Europeans were much more advanced in science, technology, socio/political...
Type your answer here... 1785
Because the whites thought they were "superior" to the blacks. So when the slaves didn't want to work, they were abused.
Historically slaves were from many countries - the name slave derives from Slavic (as for Yugoslavia). Selling other peoples into slavery was a common practice amongst both the European and African...
If the father is not a slave than the child cant be born into slavery. It doesn't matter about the women its all about if the man is a slave or not