11:5050 Things That Made the Modern EconomyBankingBBC World Service Duration: 9 minutes Sun 18th Dec 2016, 11:50 on BBC World Service Americas and the CaribbeanAvailable for over a yearListen nowWarrior monks, crusaders and the mysterious origins of modern banking. Show more GenresNewsFormatsDiscussion & TalkBrand50 Things That Made the Modern Economy Source: BBC Online