Swiss Mount Everest Expedition 1952
E672872
Swiss Mount Everest Expedition 1952 was an early Swiss-led Himalayan climbing attempt that made significant progress toward the first ascent of Mount Everest and helped pave the way for later successful expeditions.
All labels observed (2)
| Label | Occurrences |
|---|---|
| 1952 Swiss Mount Everest expedition | 1 |
| Swiss Mount Everest Expedition 1952 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7570118 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Swiss Mount Everest Expedition 1952 Context triple: [Swiss Mount Everest/Lhotse Expedition 1956, precededBy, Swiss Mount Everest Expedition 1952]
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A.
Swiss Mount Everest/Lhotse Expedition 1956
The Swiss Mount Everest/Lhotse Expedition 1956 was a pioneering Swiss Himalayan mountaineering expedition that achieved the first successful ascent of Lhotse.
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B.
Italian Karakoram expedition 1958
The Italian Karakoram expedition of 1958 was a mountaineering team led by Riccardo Cassin that achieved the historic first ascent of the formidable Himalayan peak Gasherbrum IV.
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C.
1953 British Mount Everest expedition
The 1953 British Mount Everest expedition was the historic climbing campaign that achieved the first confirmed ascent of Mount Everest, led by John Hunt and culminating in Edmund Hillary and Tenzing Norgay reaching the summit.
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D.
1955 British Kangchenjunga expedition
The 1955 British Kangchenjunga expedition was the mountaineering team that achieved the first successful ascent of Kangchenjunga, the world’s third-highest mountain.
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E.
Italian Karakoram expedition of 1954
The Italian Karakoram expedition of 1954 was the historic mountaineering campaign that achieved the first successful ascent of K2, the world’s second-highest peak.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Swiss Mount Everest Expedition 1952 Target entity description: Swiss Mount Everest Expedition 1952 was an early Swiss-led Himalayan climbing attempt that made significant progress toward the first ascent of Mount Everest and helped pave the way for later successful expeditions.
-
A.
Swiss Mount Everest/Lhotse Expedition 1956
The Swiss Mount Everest/Lhotse Expedition 1956 was a pioneering Swiss Himalayan mountaineering expedition that achieved the first successful ascent of Lhotse.
-
B.
Italian Karakoram expedition 1958
The Italian Karakoram expedition of 1958 was a mountaineering team led by Riccardo Cassin that achieved the historic first ascent of the formidable Himalayan peak Gasherbrum IV.
-
C.
1953 British Mount Everest expedition
The 1953 British Mount Everest expedition was the historic climbing campaign that achieved the first confirmed ascent of Mount Everest, led by John Hunt and culminating in Edmund Hillary and Tenzing Norgay reaching the summit.
-
D.
1955 British Kangchenjunga expedition
The 1955 British Kangchenjunga expedition was the mountaineering team that achieved the first successful ascent of Kangchenjunga, the world’s third-highest mountain.
-
E.
Italian Karakoram expedition of 1954
The Italian Karakoram expedition of 1954 was the historic mountaineering campaign that achieved the first successful ascent of K2, the world’s second-highest peak.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf | mountaineering expedition ⓘ |
| approximateSummitDistanceShortfall | about 250–300 vertical metres below summit ⓘ |
| attemptStyle | siege-style climbing ⓘ |
| campEstablished | South Col NERFINISHED ⓘ |
| campType | high-altitude camps ⓘ |
| climbingEthicsContext | pre-commercial Himalayan expeditions ⓘ |
| country | Switzerland ⓘ |
| difficultyFactors |
cold temperatures
ⓘ
high winds ⓘ limitations of oxygen equipment ⓘ |
| expeditionType | national expedition ⓘ |
| highestAltitudeReached | approximately 8595 metres ⓘ |
| historicalSignificance | one of the closest pre-1953 attempts to the summit of Everest ⓘ |
| includedSherpaTeam | yes ⓘ |
| influenceOnLaterExpedition | 1953 British Mount Everest expedition ⓘ |
| leader | Edouard Wyss-Dunant NERFINISHED ⓘ |
| legacy |
demonstrated feasibility of South Col route
ⓘ
provided route knowledge for first successful ascent in 1953 ⓘ |
| locationCountry | Nepal NERFINISHED ⓘ |
| mountain | Mount Everest NERFINISHED ⓘ |
| nationalityOfTeam | Swiss ⓘ |
| notableAttempt | Lambert and Tenzing summit push from South Col ⓘ |
| notableClimber |
Raymond Lambert
NERFINISHED
ⓘ
Tenzing Norgay NERFINISHED ⓘ |
| notableOutcomeForTenzing | established Tenzing Norgay as leading high-altitude Sherpa climber ⓘ |
| notablePublication | expedition reports in Alpine journals ⓘ |
| notableSherpa | Tenzing Norgay NERFINISHED ⓘ |
| objective | first ascent of Mount Everest ⓘ |
| organizedBy | Swiss Foundation for Alpine Research NERFINISHED ⓘ |
| partOfHistoricalPeriod | early 1950s Himalayan mountaineering era ⓘ |
| pioneeredRouteFeature | Khumbu Icefall passage NERFINISHED ⓘ |
| pioneeredRouteFeature |
Lhotse Face ascent line
ⓘ
Western Cwm approach NERFINISHED ⓘ |
| preceded | 1952 Swiss autumn Mount Everest expedition NERFINISHED ⓘ |
| precededBy | 1951 British Mount Everest reconnaissance expedition NERFINISHED ⓘ |
| region | Himalayas NERFINISHED ⓘ |
| result | summit not reached ⓘ |
| routeAttempted | South Col route NERFINISHED ⓘ |
| season | spring 1952 ⓘ |
| sideOfMountain | Nepal (southern) side NERFINISHED ⓘ |
| usedBottledOxygenSystem | closed-circuit oxygen equipment ⓘ |
| usedFixedRopes | yes ⓘ |
| usedPorters | yes ⓘ |
| usedSupplementaryOxygen | yes ⓘ |
| year | 1952 ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Swiss Mount Everest Expedition 1952 Description of subject: Swiss Mount Everest Expedition 1952 was an early Swiss-led Himalayan climbing attempt that made significant progress toward the first ascent of Mount Everest and helped pave the way for later successful expeditions.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
1952 Swiss Mount Everest expedition