Where are the Hakkas from in Jiangxi?

Hakka people in Jiangxi are mainly distributed in Gannan, which is usually called "Gannan". Others are distributed in Ji 'an and south of Tonggu in the north of Jiangxi, and there are a large number of Hakka people in Wuning, Xiushui and Wanzai. Since the Song Dynasty, the Han nationality in the Central Plains moved southward on a large scale, passing through southern Jiangxi and western Fujian to Meizhou, and finally formed a relatively mature and stable Hakka family. Some immigrants stayed in Gannan, Jiangxi, where they thrived.