Archaeologists in China have found what they say is the world’s oldest known coin manufacturing site. … Bill Maurer, an anthropologist [professor of anthropology & social sciences dean] at the University of California Irvine who was not involved in the new research, tells National Geographic’s Jillian Kramer that the discovery of the coins together with the molds used to make them is highly unusual. Ancient coins are often discovered in hoards far removed from the sites where they were minted, making it difficult to date them.

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