Yunnan and Beijing historian and many like him concluded that the Lao which mean in the old Chinese transcript meaning (old,wise,wizardly,higher,master and ancient) are the ancestor of all Tai race during our earliest stage in China.
Before our great migration into S.E.A that force many Tai into that region. He even believe that Beijing still has a old scroll relic that trait the Lao people further back then it is expected. And their was no Siam nor Thai existed during that early history trait of them in China among it dynasty. At the time, he said that Thailand used Western ideology to distinguish themselves politically by over mapping the true origin of the Thai people.
Which is why today the word "Lao" and our ethnic "Lao" name are considered by the Thai people as inferior names or slang, because we kept our originality,meaning and language history among our Asian brother and sister from White foreign ideology that the Thai lost. Even the Frenchmen know that Lao people were the majority in NorthEast,Northern Lanna and Lanxang region.
So the Thai are using Lao ancestory lineage to build up their missing link pieces together. But it can never be un-written or re-establish because Thai or Siamese do not have a trait of them in Chinese historic archives.
! I hope everyone can check this out and if anymore information about our Lao previous history in China. Please share with us so we can better understand our ancestor and what it really mean to be Lao and where we fit in history. If we ignore ourselves. Then we would be lost forever and be forgotten. Be proud of who you are!