From the 7th century, Buddhism gradually declined in its home of India, but quickly took root after it was introduced into Tibet. To facilitate the advocacy of Buddhism and attract Tibetan believers, the early Buddhist hierarchs included the indigenous deities of the primitive Bon religion as the guardian gods of Buddhism and the sacrificial rituals of the Bon sorcerers into the Buddhist rituals. Much contents of the Bon religion were inherited by Buddhism, which was also endowed with strong local and ethnic characteristics. Hence, unique Tibetan Buddhism came into being in Tibet (1956)