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For centuries perfume has been used to show status and wealth, for medicinal and for religious reasons and the global business is now worth tens of billions of dollars a year. So why do we still perfume ourselves? What image are we trying project when we use a fragrance that emanates from our bodies and permeates the air? Mike Williams talks to a historian, an archaeologist, a 'nose' and a business analyst to find out. He also learns how to make Eau de Cologne. (Photo: A craftswoman works on a perfume bottle at a fragrance workshop in Paris. Credit: Miguel Medina/AFP/Getty Images)