Archaeologists excavating the remains of Guanzhuang—an ancient city in China’s eastern Henan Province—have discovered what they believe is the oldest-known coin mint …. Coins are often found “bundled together and completely lacking any of the original context of their production or their use,” says Bill Maurer, a professor of anthropology at the University of California Irvine and director of the Institute for Money, Technology and Financial Inclusion. “But in this case, you’ve got the whole mint, and you’ve got the casts that were used.” The completeness of the discovery is what’s remarkable, says Maurer, who was not involved in the research. 

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