A relics site of an ancient fortress town dating back to the Warring States Period (475 -221 BC) was discovered in Jinan, Shandong province.

The site is the earliest ancient city found in Jinan so far.

According to archaeologists from the cultural relics and archaeology research institute of Shandong, the fortress town and the surrounding moat cover an area of about 140,000 square meters.

According to excavation findings, archaeologists believed it was used for military defense of the state of Qi.

Relics and items dating back to the Tang Dynasty (618-907) were also unearthed from the site.