Why is Jiangyin called Jiangyin?

Because it is located in the south of the Yangtze River, Yin and Yang originally mean that the sun is facing away from the sun, the sun is facing away from the sun, and it is cloudy. China is located in the northern hemisphere, and the mountains and rivers are roughly east-west and cross each other. Shan Zhinan and the north of the water are Yang, so Shan Zhinan and the north of the water are Yang, and vice versa. "Twenty-eight years of Xi Gong": "The north water is Yang, and the south water is Yang." Xu Shen's "Shuo Wen Jie Zi": "Yin, dark also; South of the water, north of the mountain. " Li Jifu further pointed out in Yuanhe County Records: "The mountains are sunny in the south and cloudy in the north; The water in the north is yang and the water in the south is yin. " Place names named after Yin or Yang reflect their geographical orientation, such as Huayin in the north of Huashan, Hengyang in the south of Hengshan, Jiangyin in the south, Huaiyin in in the south of Huaishui, Hanyang in the north of Hanshui and Luoyang in the north of Luoshui ... China is located in the northern hemisphere. Because the topography of water in China is high in the northwest and gradually low in the southeast, rivers often flow to the southeast, and the south bank is easily eroded by river water, forming a situation that the south is wet and the north is dry, so the water in the north is called Yang and the water in the south is called Yin.