Ama Dablam in the context of 1960–61 Silver Hut expedition

Mount Everest (known locally as Sagarmāthā in Nepal and Qomolangma in Tibet) is Earth's highest mountain above sea level. It lies in the Mahalangur Himal sub-range of the Himalayas and marks part of the China–Nepal border at its summit. Its height was most recently measured in 2020 by Chinese and Nepali authorities as 8,848.86 m (29,031 ft 8+1⁄2 in).

Mount Everest attracts many climbers, including highly experienced mountaineers. There are two main climbing routes, one approaching the summit from the southeast in Nepal (known as the standard route) and the other from the north in Tibet. While not posing substantial technical climbing challenges on the standard route, Everest presents dangers such as altitude sickness, weather, and wind, as well as hazards from avalanches and the Khumbu Icefall. As of May 2024, 340 people have died on Everest. Over 200 bodies remain on the mountain and have not been removed due to the dangerous conditions.

Koshi Province (Nepali: कोशी प्रदेश, romanized: Kōśī pradēśa) is an autonomous province of Nepal adopted by the Constitution of Nepal on 20 September 2015. It covers an area of 25,905 km (10,002 sq mi), about 17.5% of the country's total area. With the industrial city of Biratnagar as its capital, the province includes the towns of Birtamod, Sundar Haraincha, Damak, Dharan, Itahari, Triyuga Municipality and Mechinagar, and Mount Everest, Kangchenjunga and Ama Dablam. Koshi River, the largest river of the nation, forms the province's western boundary. Under the First-past-the-post voting system issued by the Constituency Delimitation Commission, Nepal, the province hosts 28 parliamentary seats and 56 provincial assembly seats.The province is bordered by the Tibet Autonomous Region of China to the north, the Indian states of Sikkim and West Bengal to the east, Bihar to the south, and Bagmati Province and Madhesh Province to the west. According to the 2021 Nepal census, there are around five million people in the province, with a population density of 190 per square kilometre. In the 2011 Nepal census, the province had approximately 4.5 million people.

Tengboche (or Thyangboche) is a village in Khumbu Pasanglhamu rural municipality in the Khumbu subregion of Koshi Province in Nepal, located at 3,867 metres (12,687 ft). Within the village is an important Buddhist monastery, Tengboche Monastery, which is the largest gompa in the Khumbu region. The structure was built in 1923. In 1934, it was destroyed by an earthquake but subsequently rebuilt. It was destroyed again by a fire in 1989, and again rebuilt with the help of volunteers and the provision of foreign aid. Tengboche has a panoramic view of the Himalayan mountains, including the well-known peaks of Tawache, Everest, Nuptse, Lhotse, Ama Dablam, and Thamserku. Tenzing Norgay, the first man to reach the summit of Mount Everest with Sir Edmund Hillary, was born in the area in the village of Thani and was once sent to Tengboche Monastery to be a monk.

Barry Chapman Bishop (January 13, 1932 – September 24, 1994) was an American mountaineer, scientist, photographer and scholar. With teammates Jim Whittaker, Lute Jerstad, Willi Unsoeld and Tom Hornbein, he was a member of the American Mount Everest Expedition led by Norman Dyhrenfurth, the first American team to summit Mount Everest on May 22, 1963. He reached the summit of Mount Everest by the South Col route on May 22, 1963 with fellow American Lute Jerstad, sharing the honor of becoming the second and third Americans to stand on Everest's summit. Prior to his Everest summit, Bishop participated in several other notable first ascents; the West Buttress route on Denali in 1951, and the South West ridge route on 6,170 meter Himalayan peak Ama Dablam in 1961. He worked for the National Geographic Society for most of his life, beginning as a picture editor in 1959 and serving as a photographer, writer, and scientist with the society until his retirement in 1994. He was killed in an automobile accident near Pocatello, Idaho later that year.