didn't watch it. Even the issue of American/English/European Empire slavery isn't as simple as many activists today want it to be. They would go to the slave ports in African coastal cities to buy conquered tribes from other African warlords and tribes. This was huge business back then and these tribes would conqueror other tribes for the express purpose of profiting off selling them to European slave traders. The only group of people that were brave enough to go into continental Africa to enslave the populous was the Muslims Califates. One of the biggest consequences of losing in war was being sold into slavery after throughout history. Also, go and look at modern day slavery that is still taking place all over the world.