Teachers' Day aims to affirm teachers' contribution to education. In the modern history of China, Teachers' Day was celebrated many times on different dates. It was not until 1985, when the ninth meeting of the 6th the National People's Congress Standing Committee (NPCSC) passed the State Council's proposal on the establishment of Teachers' Day, that 1985 September 10 was really determined as the first teachers' day in China.

Tibetan (? ) refers to the Tibetan language used by Tibetans. Tibetan language belongs to the Tibetan branch of Sino-Tibetan language family of Tibeto-Burman language family, and its applicable areas are mainly Tibetans in China and some people in Nepal, Bhutan, India and Pakistan. Tibetan belongs to vowel marker of phonological writing, and there are two opinions about the origin of Tibetan. Some scholars believe that Tommi Sambuza, a Tibetan linguist, was sent by King Songtsan Gampo to study Sanskrit in northern India in the 7th century A.D. during the Tubo period, and after returning to China, he quoted Sanskrit letters to create. Yongzhongben believed that Tibetan was evolved from Xiangxiong.