Photo taken on Aug. 23, 2022 shows a clay pot discovered at Nanzuo heritage site in Qingyang city, northwest China's Gansu Province. (Photo: China News Service/Sun Zifa)
Based on the unearthed artifacts, the Nanzuo site belongs to the late period of the Yangshao Culture, dating back to 5,000 to 7,000 across north China.
Photo taken on Aug. 23, 2022 shows carbonized rice remains unearthed at Nanzuo heritage site in Qingyang city, northwest China's Gansu Province. (Photo: China News Service/Sun Zifa)
Photo taken on Aug. 23, 2022 shows a clay bottle discovered at Nanzuo heritage site in Qingyang city, northwest China's Gansu Province. (Photo: China News Service/Sun Zifa)
Archeologists work at the discovery site of Nanzuo heritage site in Qingyang city, northwest China's Gansu Province, Aug. 23, 2022. (Photo: China News Service/Sun Zifa)
Photo shows the archeological site of Nanzuo heritage site in Qingyang city, northwest China's Gansu Province. (Photo: China News Service/Sun Zifa)