The development of Tibetan Buddhism has gone through four stages
Tibetan Buddhism is also known as "Tibetan Buddhism", "Lamaism" and "Tibetan Buddhism". It is the local form of Buddhism in Tibet as a part of Chinese Buddhism. The Tibetan ethnic group is the main body of religion, and the Tibetan language is the main tool for teaching and learning. It is Mahayana esoteric Buddhism with Tibetan cultural characteristics.
During the development of Buddhism, two major systems, the Hinayana spread to the south and the Mahayana spread to the north, were gradually formed. Northern Mahayana Buddhism was introduced to China around the time of the Christian era. Before Buddhism was introduced to Tibet, the Tibetans believed in the original local religion called "Bon". Buddhism was introduced into Tibet from India and China in the 7th to 8th centuries. It has a history of more than 1,400 years.
Introduction to Tibetan Buddhism development.
Tibetan Buddhism has gone through four stages: the first transmission, the rejuvenation, the dingsheng, and the stepping into the world:
 The initial stage of dissemination was from Songtsen Gampo’s presiding over the translation of the scriptures and the establishment of Buddhist regulations in the early 7th century to the extinction of Buddha by Langdama in the 9th century.
 During the Zhongxing period, from the end of the 10th century Rinchen Sambu translated the scriptures, the Bengal Buddhist master Atisha entered Tibet to spread the law to the 14th century Tsongkha established the Gelug sect. More than a dozen Tibetan Buddhist sects, including Kadam, Kagyu, Sakya, Nyingma, Hikie, Jonang, and Chuopu, were born in this period, forming a prosperous scene of contention among a hundred schools of thought.
 The peak period of Tibetan Buddhism was from the establishment of the Gelug Sect in the second half of the 14th century to the middle of the 20th century. The main feature is that thousands of large and small college-style lamaseries, led by the three major monasteries in Lhasa, have been established in Gansu, Qinghai, Sichuan, Tibet and Mongolian grasslands, which has made unprecedented achievements in the study of Buddhist esotericism.
 In the 20th century, Tibetan Buddhism began to gradually enter the world. With unique values that benefit all living beings, profound philosophy, special practice secrets, and rich and distinctive cultural connotations, it has formed a powerful charisma that has won the love of the broad masses of people in the Western world. It has flourished in Western Europe, North America and other Western countries for half a century.