Back then demand created supply, not the other way around. Nowadays they convince you need a new iphone. Back then they didn't need to convince colonial powers they need slaves. The start of the supply chain were the Europeans, not the local African kings. Not surprising a member of a nation that through mass enslavement created immense wealth is trying to pretend like her country had nothing to do with soavery.CNN's Don Lemon gets shut down by irrefutable logic.