Bon Religion: the indigenous religion of Tibet prior to the arrival of Buddhism in the 8th century.
Hindu Religion: prominant along the southern slopes and valleys of the Himalayas.
Gelug School: founded by Lama Tsongkhapa as a synthesis of the earlier Buddhist Schools.
Kagyu School: founded by Marpa and made famous by Milarepa, 11th century A.D.
Nyingma School: the Ancient Ones, first of the Buddhist traditions of Tibet.
Sakya School: established by the Khon family in Tsang Province, 1073 A.D.
Shangpa Kagyu School: founded by Khedrup Khyungpo Naljor in the 11th century and revived by Jamgon Kongtrul in the 19th cent.