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First ascent of Lhotse without supplementary oxygen

First ascent of Lhotse without supplementary oxygen
Who
Michel Dacher
What
First
Where
Nepal
When
11 May 1977
Michel Dacher (Germany) climbed Lhotse in the Nepalese Himalayas without supplementary oxygen on 11 May 1977. At 8,516 m (27,939 ft), Lhotse the fourth-highest mountain in the world; it was first ascended in 1956, by a Swiss team.