Tibetan Buddhism was originated from Bon, which was the ancient traditional religion of Tibet. Buddhism was introduced into Tibet when King Songtsen Gampo married Princess Wencheng from Tang Dynasty who came to Tibet with a statue of Shakyamuni Buddha, which was reorganized as Tibet Buddhism. Then after, Songtsen Gampo found the first Buddhist temple, and was regarded as an embodiment of the Bodhisattva Avalokiteshvara by the second half of the 8th century.
Buddhism was developed widely because the visit of the visit of Tibet by Padmasambhava , who was an Indian Buddhist scholars and known as Guru Rinpoche. He visited Tibet after being invited by King Trisong Detsen, the 38th Tibet King.
Tibetan Buddhism is practiced not only in Tibet but in Mongolia, parts of northern India, other parts of China.. It has exerted a strong influence on people in Central Asia, especially in Mongolia and Northeastern China since the 11th century. It was adopted as an official state religion by Yuan Dynasty (1206A.D-1368A.D) and Qing Dynasty (1644-1911) that ruled China.
Today, Tibetan Buddhism has formed four main traditions that include Gelug (Pa), Sakya (Pa), Nyingma (Pa), and Kagyu (Pa).