In the Southern Song Dynasty, Anhai "Shijing Gold" set up Shijing Town, which was also both the public security sea and Shijing, so it was called "Shijing Gold Opens Double Shijing". Although Anhai and Shijing took different natural scenic spots as place names, they were actually the same town at that time, because the anecdote used by the two towns was the same historical event, that is, Zhu Song (Zhai Wei) supervised taxes in Shijing Town in the Song Dynasty.
Later, Shijing Town in Nan 'an was always called Shijing, Shijing Town in Jinjiang was called Anping Town in Ming Dynasty and Anhai Town in Qing Dynasty. At the peak of Erythrina Port in Song and Yuan Dynasties, Anhai became a very prosperous "southern port" of Erythrina, "the port was connected with merchant ships from various countries, and Jiahu traded with residents". An Hai Zhi in the Ming Dynasty: "Merchants in the Song and Yuan Dynasties brought rivers and lakes and traveled all over the world, such as pearls, jade in Shang Yue, places where they went, places where they were tattooed, and countries with inscriptions." The newly compiled Annals of Anhai said: In Song Dynasty, Anhai had an old city in the east and a new city in the west. Because of the competition of profits, a town was established. The city is called Anhai City and the town is called Anhai Town. Today's cities are scattered in straight streets and alleys, and there are no more than 1000 shops, which must be sold by people from all directions. "
The distribution of huge amounts of goods has promoted the rapid development of coastal land transportation. Anhai on the east side of the port is still a peninsula from northeast to southwest. The only land route is Chema Avenue from Caodian to Wuling Tongzhou in the north, and the connection with Daguan Road in the north and south is to cross the river by boat. At that time, there were tens of millions of people crossing the ark in Anping to help each other, but "the boat handed over water" was "a great disaster for the people".
So in the twenty-first year of Shaoxing (11), Anping Bridge (see Quanzhou Bridge Anping Bridge for details) was built, spanning five miles of Anhai and Shuitouwan, claiming to be the longest stone bridge in the world and becoming a transportation hub in southern Shanxi. 3 1 year after the completion of Anping Bridge (in the ninth year of Song Dynasty, 1 182), Zhen 'an Bridge was built three miles north of Anping Bridge, and it was juxtaposed with Anping Bridge in the same section of the harbor (see Anqiao Bridge in Quanzhou Town for details). Therefore, it is also known as "Anping straddles two Anping".
Known as "the longest bridge in the world", Anping Bridge (commonly known as "Wuli Bridge").