Pagan Viking Sea Kings spend the 10th and 11th centuries morphing into Christian monarchs. But with rulers like Harald Bluetooth and Svein Forkbeard it's debatable whether things will be any less horrific for Scandinavia's neighbors

The Atlantic Slave Trade mixes centuries of human bondage with violence, economics, commerce, geo-political competition, liberty, morality, injustice, revolution, tragedy and bloody reckonings. That sounds like a lot, yet this show merely scratches the surface of this enormous subject.