Sun Yat-Sen is the leader of 1911 Revolution.There has been controversy over his genealogical origin-whether he is Hakka's or Guangfu's.Based on the study of his genealogy, his self-identification and other ecidence, it is found thst Sun's ancestors came from the Hakka community in Zijin of Guangdong.Therefore, it is held that Sun Yat-Sen, as well as his son and grand-daughter are all Hakka people.