Vietnamese (Tieng Viet), formerly known under the French colonization as Annamese, is the national and official language of Vietnam. It is the mother tongue of the Vietnamese people, who constitute 86% of Vietnam's population, and of about three million overseas Vietnamese, most of whom live in the United States. It is also spoken as a second language by some ethnic minorities of Vietnam.
Dong Son culture is a Bronze age culture that was centered at the Red River Valley of Vietnam from about 1000 to 1 BC. The Dong Son people was skilled at cultivating rice, feeding buffalos and pigs, fishing and sailing with long dug-out canoes.