In the first year of Chongning in the Northern Song Dynasty (1102), three years after Huizong Zhao Ji came to the throne, Cai Jing paid homage to the prime minister and the new law was restarted.
Bianhe River - this golden waterway connecting the north and south and maintaining the lifeline of the capital of the Song Dynasty, boats and goods flowed day and night.
However, under the appearance of prosperity, rivers were silted up, grain ships sank, and water transportation delays occurred frequently, causing heated discussions between the government and the public.