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Has the Yellow River changed its course in history?
After the river burst, abandon the original riverbed and take a new route, which is called diversion. The Yellow River is changeable and frequently diverted because of its rich sediment concentration and good siltation. The Yellow River in Yinchuan Plain in Ningxia and Hetao Plain in Inner Mongolia has changed many times, but the main influence is the diversion of the lower reaches of the Yellow River.

It is generally believed that the channel recorded in Shangshu Gong Yu is the earliest recorded channel of the Yellow River. The river, sandwiched between valleys above Jin Meng, has not changed much. Below Jin Meng, it joins the tributaries such as Luoshui, flows northeast, passes through today's northern Henan, then flows north into Hebei Province, then joins Zhangshui, and flows north into today's ancient land of Xingtai, north of Julu. Then it divides into several tributaries and flows to the northeast sea along the terrain. People call this Yellow River "Yu He". According to the literature, there are several major diversions in the lower reaches of the Yellow River.

In the fifth year of King Zhou Ding (602 BC), the Yellow River changed its flow direction for the first time. The flood took the river from Suxukou (now the intersection of Qihe River and Weihe River), went to Luochuan in the east, then to Changshoujin (now the northeast of hua county, Henan Province), then diverted with Luochuan, and went to Zhangwu in the north (now the northeast of Cangxian County, Hebei Province) to join the Zhanghe River and enter the sea. This new river lies to the south of Yu River.

In the third year of Yuan Guang in Han Dynasty (BC 132), the Yellow River burst in the southwest of Puyang, Henan Province, and moved south again. The water burst from Juye Ze to the southeast and entered the Huaihe River from Surabaya. Although it was blocked 23 years later, it was quickly decided to divert to Tunshi River to the south, and it took 60 or 70 years to return to the original river.

In the third year of the founding of the People's Republic of China (A.D. 1 1 year), the Yellow River burst in the west of Linzhang County, Hebei Province, rushed into the old Luochuan Road in the southeast, passed through Nanle, Chaocheng, Yanggu and Liaocheng in Henan Province, went north to Bailuochuan in Yucheng, and went into the sea through Linqing, Huimin and Lijin areas in Shandong Province. In the following hundreds of years, the situation of the Yellow River was not very frequent. In the early Northern Song Dynasty, there were many crevasses and many short-distance and short-distance distributary rivers. Until June, the eighth year of Li Qing, Song Renzong (1048), the Yellow River changed its course again, breaking through the Book of Changes in Hu Huan, going north to Daming, passing through Liaocheng West to join the Weihe River in Qingxian County, Hebei Province, and then entering the sea. Song people called this river "Beiliu". 12 years later, the Yellow River burst in the lower reaches of Shanghu River, and now it is south and west, passing through Xiancheng, Guantao, Laoling and Wudi. Song people called this river "eastward flow". The public water in East China was cut off in less than 40 years.

In the second year of Jianyan in the Southern Song Dynasty (1 128), in order to prevent the nomads from going south, Du Chong, the commander of Tokyo, decided to open the Yellow River levee in Huazhou, which made the Yellow River tired and divided it into Surabaya and Jishui to the southeast. At this point, the Yellow River enters the Bohai Sea from the north and the Yellow Sea from the south. Until 1855, the Yellow River swayed mainly to the south. Although it sometimes flowed to the north, it was forcibly blocked by manpower. During the period when the South Stream seized the Huai River and entered the sea, the main stream of the Yellow River below Zhengzhou and above Qingkou was also moving infinitely. From Surabaya, or Bianshui, or Vortex, or Shui Ying, or several branches appear at the same time. It was not until Pan Jixun ruled the river at the end of Ming Dynasty that the Yellow River was basically located in Kaifeng, Lankao, Shangqiu, Dangshan, Xuzhou, Suqian and Huaiyin, the old roads of Ming and Qing Dynasties, and operated for 300 years.

In the fifth year of Xianfeng in Qing Dynasty (1855), the Yellow River changed its course again in Tongwa cavity in Yanglan (now lankao county), Henan Province, and was once again put back to the north, crossing the current river and flowing northward into Bohai Sea.

1938, Chiang Kai-shek ordered the Yellow River levee in Huayuankou, Zhengzhou to be opened, and the whole river flowed south again, entering the Huaihe River along Jia Luhe, He Ying and Guo River. Floods flooded and victims were everywhere. It was not until 1947 Huayuankou was blocked that the Yellow River returned to North Road and entered the sea from Kenli County, Shandong Province.

During the 2600 years since Zhou Ding's five years, the lower reaches of the Yellow River experienced a great cycle of swinging from north to south and from south to north. There are countless breakthroughs and shifts. Generally speaking, Jin Meng is the apex, and it is the diversion and migration range of the Yellow River on such a large delta as Tianjin in the north and Huaihe River in the south.