The ancient city of Huizhou is one of the four ancient cities in China, anciently known as Xin'an County. It was built in the Qin Dynasty and has been the seat of Hui County, state and government since Tang Dynasty. Therefore, the county and the government are in a city together, forming a unique style of the city set. The ancient city of Huizhou is the birthplace of "Hui" learning, one of the three major local schools in China, and is known as "the southeast of Bolu, the state of etiquette".