To fully grasp capitalism, it helps to understand the system it replaced – and the most meaningful differences between feudalism and capitalism. We visit the British Isles of the Middle Ages.  By John Biewen, with co-host Ellen McGirt. Interviews with Karen Dempsey, Ben Jervis, and Eleanor Janega. Story editor: Loretta Williams. Music by Michelle Osis, Lilli Haydn, Alex Symcox, and Goodnight, Lucas. Music consulting by Joe Augustine of Narrative Music. Art by Gergo Varga and Harper Biewen. “Capitalism” is a production of the Kenan Institute for Ethics at Duke University, in partnership with Imperative 21.