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Archaeologists work at the No. 3 Horse and Chariot Pit, one of a cluster of tombs belonging to noble families of the Zheng State, a vassal state during the Spring and Autumn Period (770-476 B.C.) and Warring States Period (475-221 B.C.), near the city of Xinzheng in central China's Henan Province, Nov. 13, 2017. Since February, four chariots and 122 horse skeletons have been found from the 2,400-year-old pit, the largest of the three within the cluster that have been excavated so far. (Xinhua/Zhu Xiang)
