Through one long night, in front of a fire, he recounts to her the history of the abolitionist movement.

NEWYORKER: Free Spirits

And while there was a strong abolitionist movement in England, it was the Industrial Revolution, and its mechanization that did away with the need for vast amounts of cheap labor in the colonies, that eventually turned England against the slave trade.

WSJ: Human Transactions | Spirits of the Passage | Frazier History Museum | By Mark Yost