When did "Huguang filling Sichuan" refer to the migration activities in Sichuan? How long did this migration last? What are the characteristics of the current population proportion structure in Sichua

When did "Huguang filling Sichuan" refer to the migration activities in Sichuan? How long did this migration last? What are the characteristics of the current population proportion structure in Sichuan? In the early Qing Dynasty, the migration movement of "Huguang filling Sichuan" started on a large scale in the 10th year of Kangxi (167 1) and lasted until the 41st year of Qianlong (1776). It is estimated that within a century, there will be about 950,000 immigrants from eastern Sichuan, about 210.5 million immigrants from central Sichuan and about 310.2 million immigrants from southern Sichuan. Sichuan accepted 6.23 million immigrants, accounting for 62% of Sichuan's total population.

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