On this day, 980 years ago, on January 14, 1045 (December 24, 1044 of the lunar calendar), the Northern Song Dynasty set up a monopoly market to conduct trade with the Western Xia Dynasty. In 1038 AD (the first year of Baoyuan of the Song Dynasty), Yuan Hao was officially called emperor, with the country's name Daxia, and historical name Xixia. Yuan Hao's move represented his departure from the Song Dynasty. However, the Song Dynasty did not recognize Yuanhao's independence, and from then on, there were years of wars in Song and Xia. However, the Song army was defeated repeatedly; The Western Xia Dynasty also sent troops frequently, causing casualties among soldiers, financial difficulties, and war-weariness among the people. In 1044 (the fourth year of the Qing calendar of Song Dynasty), Yuan Hao was forced to negotiate peace with Song Dynasty. Yuan Hao ostensibly cancelled the title of emperor and was conferred the title of Lord of Xia by the Song Dynasty. The Song Dynasty gave Xixia 70,000 taels of silver, 150,000 bolts of silk, and 30,000 kilograms of tea every year. On January 14, 1045 (December 24, the fourth year of the Song Dynasty), the Song Dynasty set up a monopoly market along the border to exchange transactions with the Xixia City, resuming exchanges between folk traders, and the Song and Xia War, which had lasted for seven years, came to an end. Monopoly: patents, monopolies. Monopoly market: refers to the mutual market set up by the Liao, Song, Xixia and Jin regimes in China at the border locations.