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First Ascent of Manaslu by a Japanese Expedition

Event date 9 May 1956
Location Manaslu summit (8,163 m)
Type Major historical event
Verification Verified
Status Historical

Toshio Imanishi of Japan and Gyalzen Norbu Sherpa made the first ascent of Manaslu on 9 May 1956, as part of a Japanese expedition that had tried the mountain in the two previous years. The climb is a point of national pride in Japan, which has maintained a close connection to the mountain since, and it is why Manaslu is sometimes called “the Japanese mountain”.

Sources

Last reviewed 29 September 2026. Written in Merolog’s own words from the sources listed; where sources disagree, each figure is attributed rather than merged. Spotted an error or a newer figure? Leave a comment on this entry.

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