This week, London placed a blue plaque on the former homes of Ellen Craft and William Craft. The Crafts were enslaved in the US, then fled the country in 1850, joining the trans-Atlantic abolitionist movement. The World’s Marco Werman spoke with Martha J Cutter, a professor of English and Africana Studies at the University of Connecticut, about the Crafts’ story and the impact of the trans-Atlantic abolitionist movement overall.