Conflict reigns over the history and origins of money
Thousands of years ago, money was a means of debt payment, archaeologists and anthropologists say
MONEY MYSTERIES Painted murals found in a small pyramid at the Classic Maya site of Calakmul depict scenes of people exchanging and consuming goods in what may have been a marketplace. Stylistic details indicate that the images date to nearly 1,400 years ago.
R. Carrasco Vargas, V.A. Vázquez López and S. Martin/PNAS 2009
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