The Tibetan austronesain Burmese races commenced some time during the fall of the ice age.
A group of tibetan Turkic races existed at the Tibetan Plateau and they were the tibetan Turkic races who became the parents of the many Chinese monorities ethnic groups who spreaded themselves into the Asain Steppes and Central Asia. Same were for the Austranesain and Polynesain Malay Indonesain races who were original migrants of the Tibetean Burmese Austranesains.
Many attributuons are made as tot heir purpoese ans reason for migration:
- The biblical great floods and other natural disastours
- trade and spread of trade as in the Sino-Malay trading and dsicovering of Gold in Langasuka in the 2nd centuray and China's Han dynasty which demaded gold AS A TRIBUTE FROM the Malay Austrneasain natives of Langasuka and Pan Pan in Kelantan during the Tang Dynasty
- Subsequent expansion the the might of the Tang Empire into Japan, korea or Anceint Manchuria , Siam, Malaysia and the Malay archepalgo worlds
- Later supressions of the Austrnesain races by the Qing regeime which created Xinjiang