1947 Kenneth Arnold sighting
E318042
The 1947 Kenneth Arnold sighting was a landmark UFO incident near Mount Rainier, Washington, that popularized the term "flying saucer" and sparked the modern era of UFO interest in the United States.
All labels observed (2)
| Label | Occurrences |
|---|---|
| 1947 Kenneth Arnold sighting canonical | 1 |
| 1947 Mount Rainier UFO sighting | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3009425 — 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.
Target entity: 1947 Kenneth Arnold sighting Context triple: [UFOs, notableEvent, 1947 Kenneth Arnold sighting]
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A.
1947 Roswell UFO incident
The 1947 Roswell UFO incident is a famous event in New Mexico involving the alleged crash of an unidentified flying object, which sparked decades of conspiracy theories and popular interest in extraterrestrial life.
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B.
2009 Fort Totten crash
The 2009 Fort Totten crash was a deadly rear-end collision between two Washington Metro trains on the Red Line in Washington, D.C., that became the system’s worst accident and prompted major safety reforms.
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C.
U-2 incident of 1960
The U-2 incident of 1960 was a Cold War crisis in which an American U-2 spy plane was shot down over the Soviet Union, severely damaging U.S.–Soviet relations and derailing a planned summit between their leaders.
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D.
Lockheed U-2
The Lockheed U-2 is a high-altitude American reconnaissance aircraft designed for intelligence gathering missions, particularly during the Cold War.
-
E.
Sky Witness
Sky Witness is a British pay television channel from Sky that primarily broadcasts crime dramas, medical procedurals, and other US-imported series.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: 1947 Kenneth Arnold sighting Target entity description: The 1947 Kenneth Arnold sighting was a landmark UFO incident near Mount Rainier, Washington, that popularized the term "flying saucer" and sparked the modern era of UFO interest in the United States.
-
A.
1947 Roswell UFO incident
The 1947 Roswell UFO incident is a famous event in New Mexico involving the alleged crash of an unidentified flying object, which sparked decades of conspiracy theories and popular interest in extraterrestrial life.
-
B.
2009 Fort Totten crash
The 2009 Fort Totten crash was a deadly rear-end collision between two Washington Metro trains on the Red Line in Washington, D.C., that became the system’s worst accident and prompted major safety reforms.
-
C.
U-2 incident of 1960
The U-2 incident of 1960 was a Cold War crisis in which an American U-2 spy plane was shot down over the Soviet Union, severely damaging U.S.–Soviet relations and derailing a planned summit between their leaders.
-
D.
Lockheed U-2
The Lockheed U-2 is a high-altitude American reconnaissance aircraft designed for intelligence gathering missions, particularly during the Cold War.
-
E.
Sky Witness
Sky Witness is a British pay television channel from Sky that primarily broadcasts crime dramas, medical procedurals, and other US-imported series.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
UFO sighting
ⓘ
historical event ⓘ |
| hasAircraftType | CallAir A-2 ⓘ |
| hasAltitudeReported | around 9,500 feet ⓘ |
| hasCountry |
United States of America
ⓘ
surface form:
United States
|
| hasCulturalImpact |
influenced public perception of UFOs as disc-shaped craft
ⓘ
referenced in numerous UFO documentaries and books ⓘ |
| hasDate | 1947-06-24 ⓘ |
| hasDistanceFromObserverReported | about 20 to 25 miles ⓘ |
| hasDuration | around 2 to 3 minutes ⓘ |
| hasFollowUp |
FBI file created on the incident
ⓘ
interviews with Kenneth Arnold by military intelligence ⓘ |
| hasHistoricalSignificance |
became one of the most famous UFO cases in history
ⓘ
sparked the modern era of UFO interest in the United States ⓘ triggered a wave of UFO reports in 1947 ⓘ |
| hasInvestigatingAgency |
Federal Bureau of Investigation
ⓘ
United States Army Air Forces ⓘ |
| hasLegacy | established a template for later UFO sighting reports ⓘ |
| hasLocation |
Washington State, United States
ⓘ
surface form:
Washington state
near Mount Rainier ⓘ |
| hasMainParticipant | Kenneth Arnold ⓘ |
| hasMediaImpact | popularized the term "flying saucer" ⓘ |
| hasNumberOfObjectsReported | 9 ⓘ |
| hasObjectShapeDescription |
crescent-shaped
ⓘ
saucer-like ⓘ |
| hasOfficialExplanation | variously suggested as mirages, pelicans, or other conventional phenomena ⓘ |
| hasPressCoverage | extensive national newspaper coverage in the United States ⓘ |
| hasPrimarySource | statements by Kenneth Arnold ⓘ |
| hasPrimaryWitness | Kenneth Arnold ⓘ |
| hasRelatedConcept | flying saucer ⓘ |
| hasRelatedEvent | 1947 flying disc craze in the United States ⓘ |
| hasRelatedField | ufology ⓘ |
| hasReportedMotion | objects moved like a saucer skipping across water ⓘ |
| hasSkepticalInterpretation | misidentified natural or man-made objects ⓘ |
| hasSourceType | eyewitness testimony ⓘ |
| hasSpeedReported | about 1,200 mph ⓘ |
| hasSubsequentDebate | subject of ongoing debate between skeptics and UFO proponents ⓘ |
| hasTermOrigin | "flying saucer" ⓘ |
| hasTimeOfDay | afternoon ⓘ |
| hasUFOResearchSignificance | frequently cited in ufology literature ⓘ |
| hasWeatherCondition | clear weather ⓘ |
| hasWitnessCount | 1 ⓘ |
| hasWitnessOccupation |
businessman
ⓘ
private pilot ⓘ |
| hasYear | 1947 ⓘ |
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.
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.
Subject: 1947 Kenneth Arnold sighting Description of subject: The 1947 Kenneth Arnold sighting was a landmark UFO incident near Mount Rainier, Washington, that popularized the term "flying saucer" and sparked the modern era of UFO interest in the United States.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.