Cultural relics unearthed from the middle-level culture of Xinle (6,000-5,000 years ago)
The middle-class culture of Xinle is a cultural layer between the upper and lower cultures of Xinle. Pottery groups different from the upper and lower cultures have been unearthed. This kind of pottery group was first discovered in Xinmin Pian Buzi, so it is called "Pian Buzi" cultural type.
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