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, Chris Westlake, 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.