All evil has it's purpose in this life. It is about a deeper meanings to millions of more people than what it is to you a person who was never a slave.

Quakers established the first slavery free states when they left Europe looking to practise their reformed religion alone. The British crown made them lift this ban for English slaves. In 1776 and 1777 3 new England states were the first ever to ban slavery permanently.

Christianity started abolition