![](http://www.ecns.cn/hd/2024/02/06/2c75c9de913943228858bd53c52f794a.jpg)
Photo released on Feb. 5, 2024 shows the excavation site of the eastern section of an ancient city wall of the "Gan" from the Warring States Period (475-221B.C.) to the Han Dynasty (206B.C.- 220A.D.) in Puyang, Central China's Henan Province. (Photo provided to China News Service)
![](http://www.ecns.cn/hd/2024/02/06/d383be6962c241ad99e79458819a758e.jpg)
Photo released on Feb. 5, 2024 shows the excavation site of the eastern section of an ancient city wall of the "Gan" from the Warring States Period (475-221B.C.) to the Han Dynasty (206B.C.- 220A.D.) in Puyang, Central China's Henan Province. (Photo provided to China News Service)
![](http://www.ecns.cn/hd/2024/02/06/68b9b6433b674bbcaab15ee62b15ca4f.jpg)
Pottery wares are unearthed at ancient city ruins of the "Gan" from the Warring States Period (475-221B.C.) to the Han Dynasty (206B.C.- 220). in Puyang, Central China's Henan Province. (Photo provided to China News Service)
![](http://www.ecns.cn/hd/2024/02/06/cd4b6fed79d14207b62600de253b5ce2.jpg)
Photo released on Feb. 5, 2024 shows the excavation site of the eastern section of an ancient city wall of the "Gan" from the Warring States Period (475-221B.C.) to the Han Dynasty (206B.C.- 220A.D.) in Puyang, Central China's Henan Province. (Photo provided to China News Service)
![](http://www.ecns.cn/hd/2024/02/06/73f254c800f74da788fcdb69c40619e2.jpg)
A copper ware is unearthed at ancient city ruins of the "Gan" from the Warring States Period (475-221B.C.) to the Han Dynasty (206B.C.- 220). in Puyang, Central China's Henan Province. (Photo provided to China News Service)
![](http://www.ecns.cn/hd/2024/02/06/f8ccf2a5570646d7b1952c683b18c2a2.jpg)
A copper ware is unearthed at ancient city ruins of the "Gan" from the Warring States Period (475-221B.C.) to the Han Dynasty (206B.C.- 220). in Puyang, Central China's Henan Province. (Photo provided to China News Service)