Coins and Celadon Give Beijing Its First Known Sui Dynasty Great Wall, Archaeologists Say
Ancient Originsvia NewsData.io

Sui coins and celadon from a hillside garrison in Changping have led the Beijing Institute of Archaeology to redate part of an early Great Wall line, and the institute has also presented three boats of the Eastern Han to Wei and Jin periods, about 1,800 years old, from an old course of the Yongding River.
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