Legend has it that many Dangshan people moved from Hongdong County, Shanxi Province. When was it?

Dangshan people migrated from Hongdong County, Shanxi Province, which was a large-scale migration during Hongwu and Yongle periods of Ming Dynasty.

During the period from the third year of Hongwu in Ming Dynasty to Yongle 15 (1370 to 14 17), the Ming government organized 18 large-scale official immigrants in the past 50 years, mainly moving to Beijing, Hebei, Henan, Shandong, Anhui and Jiangsu.

This migration is the largest, most extensive, organized and planned migration in the history of China. This has certain historical significance for resuming production, increasing population, developing economy, developing frontier, national unity and cultural exchange. The migration lasted for 48 years, involving 8 12 surnames, and hundreds of millions of descendants of immigrants migrated from here to various places.

The cause of this migration was the end of the Yuan Dynasty. Apart from the chaos, floods, drought locusts and epidemics also broke out one after another. The Yellow River and Huaihe River burst many times, making the people either die or flee, making the Central Plains vast and sparsely populated, and the land barren. After the establishment of the Ming Dynasty, officials from all over the country reported the desolation of the whole country to the Ming government. During the Hongwu period of the Ming Dynasty, a large number of immigrants began, agricultural production just resumed, and the "Jingnan War" happened again. The four-year war aggravated the desolation of the Central Plains, so there was still a move to move people from Yongle.