who are the hakka chinese?
Hakka, Chinese (Pinyin) Kejia or (Wade-Giles romanization) K'o-chia, ethnic group of China. Originally, the Hakka were North Chinese, but they migrated to South China (especially Guangdong, Fujian, Jiangxi, and Guangxi provinces) during the fall of the Nan (Southern) Song dynasty in the 1270s.