The Khumbu valley, where Tengboche is located, came under the influence of Buddhism about 350 years ago. Ancient scriptures of Tibet refer to this valley along with Rowlang and Khanbalung valleys as sacred places. Lama Sangwa Dorje is referred to as the founder of the oldest monastery in Khumbu at Pangboche as well as many other small hermitages. His divine psychic knowledge and clairvoyant vision had prophesied suitability of establishing a monastery at Tengboche based on a foot print on a rock left by him while meditating. However, the actual establishment of the monastery happened only during Ngawang Tenzin Norbu's time; Norbu was considered to be Sangwa Dorje's fifth incarnation. He had established a monastery at Rongbuk in Tibet on the northern face of Mt. Everest. He blessed Chatang Chotar, known as Lama Gulu, to found the Tengboche monastery at Tengboche village and as a result it got established at its present location in 1916. It is the first celibate monastery under the Nyingmapa lineage of the Vajrayana Buddhism. However, many older village level monasteries also exist close by.