Are we pure Shandong people?

At the end of the Yuan Dynasty, the frequent wars in the Central Plains, coupled with natural disasters and epidemics, made a large number of people scattered around and desolate everywhere. In Shanxi, Mongolian aristocrats Chahan Iron Eureka and Kuoko Iron Eureka used favorable terrain to defend one side and were less affected by war. Residents of North China Plain took refuge in Shanxi, which made the economy and population more prosperous than other areas. After Zhu Yuanzhang unified the whole country, in order to restore and develop the economy, he implemented the system of reclamation. The densely populated Pingyang county has become an important area for immigrants. Farmers who moved from counties first concentrated in the villages around the big locust tree in Hongdong, went through the formalities in Guangji Temple where the big locust tree was located, and then set foot on the journey in groups and moved to different places. The migration of Sophora japonica started in the early Ming Dynasty and lasted for more than 100 years. During the Hongwu period alone, hundreds of thousands of people moved out of Hongdong area. Some are directly distributed in Hebei, Shandong, Henan, Anhui and other provinces, and some are indirectly distributed in Sichuan, Yunnan, Guizhou, Northeast China, Inner Mongolia and other places. In the process of resettlement, the state gives cattle, seeds and land and exempts them from tax for three years. Through the hard work of immigrants, the cultivated land area in the original desolate area has been greatly increased, and agricultural production has been restored and developed. At the same time, it has also contributed to consolidating border defense and promoting national integration and cultural exchanges. Because these immigrants went through the immigration formalities under the locust tree in Hongdong, they regarded this place as their hometown. Up to now, the proverb "Ask where my ancestors came from, Sophora japonica in Hongtong, Shanxi" is still circulating in the north of China. (The above text is for reference. The following text was compiled by Lao Zhi according to legend) Why do many of us call going to the toilet "to relieve ourselves"? Why do men walk backwards when they are old? Legend has it that our ancestors lived well in their hometown in Shanxi at that time. I heard that they will emigrate. Who wants to take their children to get married in a distant place? It's hard to leave home. Officials on official business let out the wind to deceive everyone, saying that those who want to emigrate should stay at home, and those who don't want to leave should go through the formalities under the big locust tree in Hong Tong. Honest people believe it, and they are concentrated under the big locust tree. As a result, they were easily caught by government officials, forced to sign a pawn and forcibly immigrate. In order to prevent people from escaping, the escort officer tied people's backs with ropes, and more than a dozen people rushed forward in a string. Someone wants to pee on the road, so please report and untie your hands. It's a long way to go, and over time, "relieving yourself" has become synonymous with defecation. Because of the long-term forced walking with hands behind their backs, people have become accustomed to this action, so that when they arrive at a new place of residence, they usually walk unconsciously with their hands behind their backs. I don't know why, the descendants of immigrants continue to this day. As long as people are old, they will naturally go backwards. []