Minnan people, Guangfu people and Hakka people, how to distinguish these three types of people, and from what historical year?

Guangfu people: The foundation is the mixed blood of 500,000 immigrants from Qin Dynasty and local Vietnamese, and with the continuous addition of immigrants from the north, the Tang and Song Dynasties gradually merged-with the Pearl River Delta as the center, forming an ethnic group dominated by Cantonese.

Minnan people: the ancestors were mainly Han people who moved south between Tang and Song Dynasties-a dialect system based on Zhongyuan dialect (Heluo dialect) between Tang and Song Dynasties.

Hakka: Of the three clans, the time was late, and it was formed after the Southern Song Dynasty.

To sum up, in the Song and Yuan Dynasties, the three major ethnic groups had been formally established.