1) Slavery has existed in various forms throughout history, including the involuntary servitude of Africans beginning in 1619 in America, child sex trafficking in places like Haiti today, and widespread use of slaves in ancient Rome and Greece.
2) Modern slavery persists around the world, with over 20 million people currently being held as slaves, especially vulnerable groups like women and children.
3) While some slave systems treated slaves relatively well, most involved hard physical labor without possibility of freedom, and slaves were often subject to cruel conditions and abuse.