Monothesum made judaism different I believe
What continent is at 60° South and 60° East?
Antartica
Basically, it was bringing gain (money) to the people who profited from it.
Slaves were cheaper than other labour and needed on the plantations: they brought profit to their masters and this profit could be "invested" into buying more slaves.
Answer:
Try talking to them. See if they really want this or not, and try to convince them to get out. If it's a serious problem including abuse contact your police department.
