It is reported that Tubo Zambezi Sambuza, minister of Zambezi Gambu Sect, and other 16 people went to Tianzhu (India) to study and learn from their teachers. After returning to Tibet, I imitated Sanskrit Lanza style and combined with Tibetan phonology to create Tibetan block letters, and also created Tibetan cursive script according to Urdu style.
But this traditional view has been questioned by many scholars. In their view, it was not the Tubo Sambuza, who was often praised, who created Tibetan, but the ancient scripts that may have existed before Tubo (Songzan Gambu era) to record the original religious classics. Some scholars even tend to think that "Tibetan is based on elephants."
Create Tibetan language
Under the governance of Songzan Gambu, the Tibetan economy is developing day by day and its strength is growing day by day. However, there was a big problem that annoyed him. At that time, the Tubo people had writing, but there was no unified writing, no way to issue laws, no way to make laws, no way to translate Buddhist scriptures, and no way to communicate with neighboring countries through letters.
Many countries have sent envoys, generous gifts and letters written in various languages. The Tubo maharaja also prepared a reply for them, but there was no way to write a reply, so he had to answer a few words orally through an interpreter and sent the envoy away.
In fact, Songzan Gambo wanted to create Tubo's own characters from the moment he ascended the throne. He sent several ministers to South Asia and West Asia to learn Chinese characters with a lot of gold dust and gold dust. Some people who went were killed by robbers on the road, some were eaten by tigers in the forest, and some died of heatstroke and fever. The remaining few people returned empty-handed.