MEASURE EVERYTHING: THE ARK OF COMMERCE

An unknown man in a forgotten office develops a number that makes and breaks Presidents. A poet turns his song away from beautiful pastures and towards a metal object. Two 19th century men tire themselves out making machines. They can't know their work will one day put us on the Moon  And a man tries to invent an un-commerce, but may have built the 21st century economy instead. In the fifth episode of our series on American commerce, we look at the appraisal and measuring and counting of business.

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