related data
From the Song Dynasty to the Qing Dynasty, Yizheng was a transshipment port for grain and salt, and it was also the only place to transport tea from south to north. Why it is the only way to transport tea from south to north is related to the system of "tea monopoly" and "tea introduction" in China history. Monopoly is patent and monopoly. "Monopoly tea" is a measure of taxation, control and monopoly of tea by successive governments in China. Tea tax was levied in the first year of Tang Jianzhong (AD 780); In the ninth year of Daiwa (AD 835), tea was monopolized. Shortly after the founding of the People's Republic of China in the Song Dynasty, in order to strengthen the monopoly control of salt, tea and wine, six monopoly goods services were established throughout the country. There are six people in the world, and Zhou Zhen has one. Zhou Zhenque Freight Service Co., Ltd. is one of the six major freight service companies in China, located in Jiuzhou Warehouse, the former site. One of its functions is to monopolize the management of tea in Southeast China. At first, tea was bought and sold by officials, just like salt. All the tea produced by tea farmers in the southeast of China is sold to the government, which then transfers it to the north for sale through Zhou Zhen. In the first year of Chongning (A.D. 1 102), Cai Jian established the "tea citation law", which changed the tea from official purchase, official transportation and official sales to official supervision and commercial sales, and "tea citation" was a certificate issued by the government to tea merchants. Businessmen who buy and sell tea in tea producing areas must pay goods tax in Zhou Zhen. Citations are divided into long citations, short citations, positive citations and residual citations. The amount and area of purchase and sale are different, and the tax amount is also different. When the purchased tea is transported to the north, it must pass through Zhou Zhen and enter the Grand Canal, and it must be inspected by the goods department to prevent the citation from being inconsistent with the actual quantity and the tea tax from being omitted. In the Yuan Dynasty, citation method was used, and "tea theory" was added. "Tea reason" is a business certificate issued to tea retailers. In the Ming and Qing Dynasties, the imported methods were continued and special institutions were set up to manage them. In the early years of Hongwu in Ming Dynasty, Guazhou set up a "tea inspection office". In the 16th year (AD 1383), he moved to the west of Qingjiang Gate in Nanerli, Yizheng County. "Tea Citation Batch Inspection Institute" specializes in issuing and inspecting tea citations. In the Qing Dynasty, both letters of introduction and tickets were used, and it was not until the late Qing Dynasty that the letter of introduction system was gradually abolished.