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University of Arizona campus • March 2-3, 2019 • 9:30 a.m. to 5:30 p.m. • Free admission • ... Read more
Recent Features
The use of objects for exchange goes back to ancient times. Sometimes people would barter things directly, but they also used currency to trade goods. Natural items like shells were used as money to make trading easier.The shekel in Mesopotamia—the oldest known CURRENCY—was used about 5,000... Read more