Starch grains from human teeth reveal the plant consumption of proto-Shang people (c. 2000–1600 BC) from Nancheng site, Hebei, China

The founding processes of the first state of ancient China with a known written record, the Shang dynasty (3600–3046 cal BP), have been poorly understood. Recent discoveries of a host of archaeological sites dating to the proto-Shang culture (4000–3600 cal BP) have helped elucidate the transition to...

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