A tri-colored jar, with flowers on the surface, dates back to the Tang Dynasty (618-907) and is discovered in Yanzhou district. Tri-colored glazed pottery of the Tang Dynasty, with its bright colors and extraordinary techniques, represents the start of a new era in China's history of making pottery. [Photo provided to chinadaily.com.cn]

A tri-colored incense burner often used for sacrifices is unearthed in Yanzhou. The burner has three feet and is shaped in the form of a beast. [Photo provided to chinadaily.com.cn]