Why are there so many Hakkas in Sichuan? What is the reason why they came to Sichuan?

Because of the long-term war and the spread of plague in Sichuan, the population of Sichuan has decreased by more than 80%. In the 1970s, the indigenous population in Sichuan was less than 20%. In order to resume production and develop economy, the Qing court launched the immigration reclamation movement. From 1680 to about 1800, nearly one million Hakkas in Guangdong, Fujian, Jiangxi and other provinces went through hardships and traveled long distances to enter the inland reclamation movement with the wave of immigration. Two hundred years after the introduction of Hakka into Sichuan, the spirit, customs and dialects of Hakka have been handed down from generation to generation among some people, and their connotations and representations have been preserved and passed down, with distinctive Hakka style. This part is a veritable Hakka in Sichuan. Some people know that their ancestors were Cantonese (or claimed to be Cantonese), but Hakka dialects and customs have been stripped away. For these people, they should be called Sichuan Hakka descendants.