French Geodesic Mission to Lapland
E145357
The French Geodesic Mission to Lapland was an 18th-century scientific expedition that measured a meridian arc near the Arctic Circle to test the Earth's shape and confirm Newton's theory of an oblate spheroid.
All labels observed (2)
| Label | Occurrences |
|---|---|
| French Geodesic Mission to Lapland canonical | 2 |
| Observations of degrees along the meridian in Sweden | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1266131 — 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: French Geodesic Mission to Lapland Context triple: [Pierre-Louis Moreau de Maupertuis, tookPartIn, French Geodesic Mission to Lapland]
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A.
Soviet Arctic expeditions
Soviet Arctic expeditions were a series of state-sponsored scientific and exploratory missions undertaken by the Soviet Union to chart, study, and assert presence in the Arctic Ocean and surrounding polar regions.
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B.
Ralph Plaisted expedition
The Ralph Plaisted expedition was a 1968 snowmobile journey that became widely recognized as the first confirmed over-ice surface expedition to reach the geographic North Pole.
-
C.
Fram expedition across the Arctic Ocean
The Fram expedition across the Arctic Ocean was Fridtjof Nansen’s pioneering late-19th-century polar voyage that used a specially designed ship to drift with the pack ice in an attempt to reach the North Pole and advance scientific understanding of the Arctic.
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D.
Drake–Norris Expedition
The Drake–Norris Expedition was a large but ultimately unsuccessful 1589 English naval campaign against Spain, launched shortly after the Spanish Armada in an attempt to cripple Spanish power and support Portuguese rebels.
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E.
Vega expedition
The Vega expedition was a late 19th-century Swedish-led Arctic voyage commanded by Adolf Erik Nordenskiöld that became famous for achieving the first complete navigation of the Northeast Passage.
- 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: French Geodesic Mission to Lapland Target entity description: The French Geodesic Mission to Lapland was an 18th-century scientific expedition that measured a meridian arc near the Arctic Circle to test the Earth's shape and confirm Newton's theory of an oblate spheroid.
-
A.
Soviet Arctic expeditions
Soviet Arctic expeditions were a series of state-sponsored scientific and exploratory missions undertaken by the Soviet Union to chart, study, and assert presence in the Arctic Ocean and surrounding polar regions.
-
B.
Ralph Plaisted expedition
The Ralph Plaisted expedition was a 1968 snowmobile journey that became widely recognized as the first confirmed over-ice surface expedition to reach the geographic North Pole.
-
C.
Fram expedition across the Arctic Ocean
The Fram expedition across the Arctic Ocean was Fridtjof Nansen’s pioneering late-19th-century polar voyage that used a specially designed ship to drift with the pack ice in an attempt to reach the North Pole and advance scientific understanding of the Arctic.
-
D.
Drake–Norris Expedition
The Drake–Norris Expedition was a large but ultimately unsuccessful 1589 English naval campaign against Spain, launched shortly after the Spanish Armada in an attempt to cripple Spanish power and support Portuguese rebels.
-
E.
Vega expedition
The Vega expedition was a late 19th-century Swedish-led Arctic voyage commanded by Adolf Erik Nordenskiöld that became famous for achieving the first complete navigation of the Northeast Passage.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
18th-century expedition
ⓘ
geodetic survey ⓘ scientific expedition ⓘ |
| comparesWith | meridian measurements at lower latitudes ⓘ |
| country | France ⓘ |
| epoch | 18th century ⓘ |
| field |
astronomy
ⓘ
geodesy ⓘ |
| goal |
determine the shape of the Earth
ⓘ
measure a meridian arc near the Arctic Circle ⓘ test Newton's theory of an oblate spheroid ⓘ |
| hasPurpose | compare polar and equatorial meridian arc lengths ⓘ |
| hasResult | provided evidence for Earth's polar flattening ⓘ |
| locatedIn |
Lapland
ⓘ
near the Arctic Circle ⓘ |
| measures | meridian arc length ⓘ |
| method | measurement of terrestrial meridian ⓘ |
| partOf | French geodetic missions of the 18th century ⓘ |
| relatedTo |
history of geodesy
ⓘ
measurement of Earth’s curvature ⓘ shape of the Earth debate ⓘ |
| sponsor | French scientific authorities ⓘ |
| testsTheory | Isaac Newton's theory of an oblate spheroid Earth ⓘ |
| uses |
astronomical observations
ⓘ
triangulation ⓘ |
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: French Geodesic Mission to Lapland Description of subject: The French Geodesic Mission to Lapland was an 18th-century scientific expedition that measured a meridian arc near the Arctic Circle to test the Earth's shape and confirm Newton's theory of an oblate spheroid.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Observations of degrees along the meridian in Sweden