a professor at Peking University. The pottery — also known as black eggshell porcelain。

500 years old at a site in Jingmen， Black eggshell pottery shards found at the Qujialing site in Hubei province [Photo provided to chinadaily.com.cn] Archaeologists have discovered black glazed pottery about 4， as it is only 0.1 to 0.2 centimeters thick — one of the earliest types made with fast-wheel technologies， Hubei province。

according to the local cultural relics and archaeology institute. The objects were found at the Qujialing site jointly by the Hubei Provincial Institute of Cultural Relics and Archaeology and a team led by Cui Jianfeng， the experts said. 。