It is estimated that between two thirds and three quarters of the Bhutanese population follow Vajrayana Buddhism, which is also the state religion. About one quarter to one third are followers of Hinduism. Buddhism was introduced to Bhutan in the 7th century AD. According to legend, Guru Rinpoche ordered the Tibetan king Trisong Detsen to have 108 temples built all over the Himalayas. Doing so would aid in subduing a demoness and allow for the construction of Samye Temple in neighbouring Tibet.