Four immigration phenomena in the history of China

1. North-South Migration from Qin Unification to Song Dynasty

2. Migration from East to West in Yuan, Ming and Qing Dynasties

3. In Qing Dynasty, there were frequent immigrants not only in the Yangtze River valley, but also in Kanto, Waikou and Taiwan Province.

Frontier areas such as the Gulf have also become hot spots for immigrants.

4. Modern immigrants from all sides of the border.

I hope answering the question will help you.