Alchi Monastery topographic conditions, only two survived, one of them the esteemed scholar and translator Rinchen Zangpo who established Buddhist activity in the Ladakh region and other areas of India including Himachal Pradesh and Sikkim. During his sojourn there, he also went to the neighbouring countries of Nepal, Bhutan and Tibet. Zangpo became known by the epithet "Lohtsawa" or the "Great Translator"; he is credited with building 108 monasteries in the trans-Himalayan region in his quest to disseminate Buddhism. He institutionalized Buddhism in the region; these monasteries are considered the mainstay of Vajrayana of Tibetan Buddhism (also known as Lamaism). Zangpo engaged
Southern, Eastern and Northern Buddhism provides additional evidence that the form of Buddhism practiced in the "Northern" territories likely retains many non-Mahayana influences. Furthermore, in certain regions of China and East Asia (notably in Southern China), non-Mahayana forms were sometimes dominant. Vietnam represents an interesting case of a country lying in the liminal region between the Northern and Southern Buddhist schools. As might be expected, Vietnamese Buddhism shows both a strong Mahayana and Theravada influence. Southern, Eastern and Northern Buddhism "Southern Buddhism", "Eastern Buddhism" and "Northern Buddhism" are geographical terms sometimes used to describe the styles of Buddhism practiced in Asia. "Southern Buddhism" represents Buddhism