In July 2023, Kristin Harila and Tenjen Lama Sherpa set a speed record of 92 days for climbing all 14 eight-thousanders, with supplementary oxygen.
[1] In 2022, after several years of research, a team of experts reported that they could only confirm evidence that three climbers, Ed Viesturs, Veikka Gustafsson and Nirmal Purja, had stood on the true geographic summit of all 14 eight-thousanders.
[2] The first recorded attempt on an eight-thousander was when Albert F. Mummery, Geoffrey Hastings and J. Norman Collie tried to climb Pakistan's Nanga Parbat in 1895.
[7] Italian climber Simone Moro made the first winter ascent of four eight-thousanders (Shishapangma, Makalu, Gasherbrum II, and Nanga Parbat),[9] while three Polish climbers have each made three first winter ascents of an eight-thousander, Maciej Berbeka (Cho Oyu, Manaslu, and Broad Peak), Krzysztof Wielicki (Everest, Kangchenjunga, and Lhotse) and Jerzy Kukuczka (Dhaulagiri I, Kangchenjunga, and Annapurna I).
[13][14] The first couple and team to summit all 14 eight-thousanders were the Italians Nives Meroi (who was the second woman to accomplish this feat without supplementary oxygen), and her husband Romano Benet [it] on 11 May 2017.
[20] On 20 May 2013, South Korean climber Kim Chang-ho set a new speed record of climbing all 14 eight-thousanders, without the use of supplementary oxygen, in 7 years and 310 days.
On 29 October 2019, the British-Nepali climber Nirmal Purja set a speed record of 6 months and 6 days for climbing all 14 eight-thousanders with the use of supplementary oxygen.
[21][22][23] On 27 July 2023, Kristin Harila and Tenjen Lama Sherpa set a new speed record of 92 days for climbing all 14 eight-thousanders with supplementary oxygen.
[1][42] Elizabeth Hawley's The Himalayan Database,[43] is considered as an important source for verified ascents for the Nepalese Himalayas.
[1][42] Cho Oyu for example, is a recurrent problem eight-thousander as its true peak is a small hump about a thirty minutes walk into the large flat summit plateau that lies in the death zone.
[150][151] Shishapangma is another problem peak because of its dual summits, which despite being close in height, are up to two hours climbing time apart and require the crossing of an exposed and dangerous snow ridge.
[1] In June 2021, Australian climber Damien Gildea wrote an article in the American Alpine Journal on the work that Jurgalski and a team of international experts were doing in this area, including publishing detailed surveys of the problem summits using data from the German Aerospace Center.
[2] In 2012, to relieve capacity pressure and overcrowding on the world's highest mountain, greater restrictions were placed on expeditions to the summit of Mount Everest.
[155] To address the growing capacity constraints, Nepal lobbied the International Climbing and Mountaineering Federation (or UIAA) to reclassify five subsidiary summits (two on Lhotse and three on Kanchenjunga), as standalone eight-thousanders, while Pakistan lobbied for a sixth subsidiary summit (on Broad Peak) as a standalone eight-thousander.