Who can tell me the origin of Liu's surname in Fuxing Township, Langzhong, Sichuan? Follow your ancestors!

He is a descendant of my ancestor Tao, who lived in Pingyang, Shanxi. After the Ming-Jing War, Shanxi was overcrowded, while the total population of Luchuan, Hebei and Henan provinces was not as good as that of Shanxi. A large area of fertile land was barren, and there was no Fiona Fang family. After emperor Yongle settled down in the world, he thought that the people were the foundation of the country, so he sent a letter to immigrate, mainly from Shanxi. My surname is Liu, and I come from Shanxi. People who have lived in China are all over the world, so there are many descendants.