65,438+06 people including Tommi Sambuza, Minister of Songtsan Gambu, went to Tianzhu (India) to study Sanskrit and Buddhism. After returning to Tibet, Tunmi Sambuza combined with Tibetan phonology and absorbed the essence of ancient Tibetan. After finishing and recreating, he formed a Tibetan writing system with 30 consonants and 4 vowel symbols.
Lhasa dialect (except Qamdo in Tibet).
Kangba Dialect (Changdu in Tibet, Yushu in Qinghai, Ganzi in Sichuan, Diqing in Yunnan).
Amdo dialect (except Yushu in Qinghai, Gannan in Gansu, Huarui in Gansu and Aba in Sichuan).
Historical evolution of Tibetan language;
In the period of ancient linguistics-the period of ancient Xiangxiong civilization, Xiangxiong linguistics served the ancient Tibetan civilization.
It is introduced in Legs BZ Hadrin Boche Gther Mstod and Mr. Nankanobu's History of Ancient Xiangxiong and Tubo Civilization. Brda sprod nyi shu bdun pa, which was handed down later, can be regarded as the inheritance and development of this language research tradition.