↑ “Tibetan Ethnic Group”. ChinaCulture.org (This is a state-owned website which reflects the official views of the Chinese government.). 2011. In the 7th century AD, the Tibetan king, Songtsan Gampo, unified the whole region and established the Tubo Dynasty (629-846). The marriage of this Tibetan king to Princess Wencheng from Chang'an (modern-day Xian, the then capital of the Tang Dynasty (618-907)) and Princess Chizun from Nepal helped to introduce Buddhism and develop Tibetan culture.
↑ “Tibet's history during Tang dynasty”. Embassy of the People's Republic of China in India (This is a website which is directly administered by the Chinese government.). 2009. In 641, Princess Wencheng of the Tang Dynasty married Srongtsen Gampo. She brought to Tibet advanced cultures such as astronomical reckoning, agricultural techniques, medicines, paper making and sculpturing, as well as agricultural technicians, painters and architects, thus promoting the economic and cultural development in Tibet.
