"The Yao people (its majority branch is also known as Mien; simplified Chinese: 瑶族; traditional Chinese: 瑤族; pinyin: Yáo zú; Vietnamese: người Dao) is a government ...
classification for various minorities in China and Vietnam. They are one of the 55 officially recognised ethnic minorities in China and reside in the mountainous terrain of the southwest and south. They also form one of the 54 ethnic groups officially recognised by Vietnam. In China in the last census in 2000, they numbered 2,637,421 and in Vietnam census in 2019, they numbered 891,151." - (en.wikipedia.org 11.08.2021)