First Ascent of Everest Without Oxygen

Date: May 8, 1978 • Location: Lobujya, Nepal

The first ascent of Mount Everest without supplemental oxygen, by Reinhold Messner and Peter Habeler.

Mount Everest is the highest mountain on Earth 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 through a joint survey by Nepalese and Chinese authorities as 8,848.86 m.