Changsha Tongguan kiln, which began in the early Tang Dynasty, flourished in the middle and late Tang Dynasty and declined in the Five Dynasties, has experienced more than 200 years, and has a history of more than 1000 years. It is one of the three major export kilns of Tang Dynasty in China, which are the same as Yue kiln in Zhejiang and Xing kiln kiln in Hebei. It is also the birthplace of the world's Since its discovery in 1956, more than 10,000 cultural relics have been unearthed. Archaeologists call it the factory of the world thousands of years ago.