1909 K2 expedition
E926652
The 1909 K2 expedition was an early Italian mountaineering attempt in the Karakoram that conducted pioneering exploration and achieved significant altitude records on K2 under the leadership of Luigi Amedeo, Duke of the Abruzzi.
All labels observed (1)
| Label | Occurrences |
|---|---|
| 1909 K2 expedition canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11439416 — 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: 1909 K2 expedition Context triple: [Luigi Amedeo, Duke of the Abruzzi, ledExpedition, 1909 K2 expedition]
-
A.
1922 British Mount Everest expedition
The 1922 British Mount Everest expedition was an early high-altitude climbing attempt that made the first serious efforts to reach the summit of Everest and set altitude records, helping to pioneer Himalayan mountaineering.
-
B.
1921 British Mount Everest reconnaissance expedition
The 1921 British Mount Everest reconnaissance expedition was the first official British mission to explore and map routes on Mount Everest, laying the groundwork for later summit attempts.
-
C.
1924 British Mount Everest expedition
The 1924 British Mount Everest expedition was an early and historically significant attempt to reach the summit of Everest, remembered especially for the disappearance of climbers George Mallory and Andrew Irvine high on the mountain.
-
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.
French Makalu expedition
The French Makalu expedition was the mountaineering team that achieved the first ascent of Kangchungtse, a subsidiary peak of Makalu in the Himalayas.
- 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: 1909 K2 expedition Target entity description: The 1909 K2 expedition was an early Italian mountaineering attempt in the Karakoram that conducted pioneering exploration and achieved significant altitude records on K2 under the leadership of Luigi Amedeo, Duke of the Abruzzi.
-
A.
1922 British Mount Everest expedition
The 1922 British Mount Everest expedition was an early high-altitude climbing attempt that made the first serious efforts to reach the summit of Everest and set altitude records, helping to pioneer Himalayan mountaineering.
-
B.
1921 British Mount Everest reconnaissance expedition
The 1921 British Mount Everest reconnaissance expedition was the first official British mission to explore and map routes on Mount Everest, laying the groundwork for later summit attempts.
-
C.
1924 British Mount Everest expedition
The 1924 British Mount Everest expedition was an early and historically significant attempt to reach the summit of Everest, remembered especially for the disappearance of climbers George Mallory and Andrew Irvine high on the mountain.
-
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.
French Makalu expedition
The French Makalu expedition was the mountaineering team that achieved the first ascent of Kangchungtse, a subsidiary peak of Makalu in the Himalayas.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
Italian expedition
ⓘ
K2 expedition ⓘ mountaineering expedition ⓘ |
| activity |
cartographic survey
ⓘ
geographical exploration ⓘ mountaineering ⓘ |
| aim | first ascent of K2 ⓘ |
| associatedWith |
Italian mountaineering history
ⓘ
history of K2 climbing ⓘ |
| climbingStyle | siege-style mountaineering ⓘ |
| countryOfOrigin | Kingdom of Italy NERFINISHED ⓘ |
| didNotReach | summit of K2 ⓘ |
| documentedIn | accounts by Luigi Amedeo, Duke of the Abruzzi ⓘ |
| era | pre-World War I mountaineering ⓘ |
| explored |
Abruzzi Spur
NERFINISHED
ⓘ
K2 NERFINISHED ⓘ southern approaches to K2 ⓘ |
| influenced | later K2 expeditions ⓘ |
| leader | Luigi Amedeo, Duke of the Abruzzi NERFINISHED ⓘ |
| leaderTitle | Duke of the Abruzzi NERFINISHED ⓘ |
| legacy |
established standard southeast ridge route on K2
ⓘ
provided early topographical data on K2 ⓘ |
| locatedIn |
Baltoro region
NERFINISHED
ⓘ
Karakoram NERFINISHED ⓘ |
| mountain | K2 NERFINISHED ⓘ |
| nationalityOfTeam | Italian ⓘ |
| notableFor |
early high-altitude climbing achievements
ⓘ
establishing the Abruzzi Spur route ⓘ pioneering exploration of K2 ⓘ |
| organizedBy | Luigi Amedeo, Duke of the Abruzzi NERFINISHED ⓘ |
| partOf | early 20th-century Himalayan and Karakoram exploration ⓘ |
| reachedAltitude |
approximately 20,505 feet
ⓘ
approximately 6,250 metres ⓘ |
| regionExplored |
Baltoro Glacier area
NERFINISHED
ⓘ
Karakoram range NERFINISHED ⓘ |
| result | failed summit attempt but successful exploration ⓘ |
| secondaryAim | mapping and exploration of the K2 region ⓘ |
| setRecord |
highest altitude reached on K2 up to that date
ⓘ
world altitude record for the time ⓘ |
| startYear | 1909 ⓘ |
| tookPlaceIn |
British India
NERFINISHED
ⓘ
present-day Pakistan ⓘ |
| usedRoute | Abruzzi Spur NERFINISHED ⓘ |
| usedTechnology | early 20th-century alpine equipment ⓘ |
| year | 1909 ⓘ |
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: 1909 K2 expedition Description of subject: The 1909 K2 expedition was an early Italian mountaineering attempt in the Karakoram that conducted pioneering exploration and achieved significant altitude records on K2 under the leadership of Luigi Amedeo, Duke of the Abruzzi.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.