History of migration to Sichuan

The history of migration to Sichuan (including today's Sichuan province and Chongqing municipality) encompasses several major waves of migration over millennia, profoundly shaping the region's demographics, culture, language, and economy. Situated in the fertile Sichuan Basin in Southwest China, the region, often known as the "Land of Abundance" (天府之國, Tiānfǔ zhi guó), has both attracted and necessitated large-scale population movements due to factors including conquest, political instability, devastating warfare, government policy, and economic opportunity.

Source: Wikipedia — History of migration to Sichuan (CC BY-SA 4.0)