Michigan meridian
E936181
The Michigan meridian is a principal north–south survey line used as a reference for land surveying and mapping throughout the state of Michigan.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Michigan meridian canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T11600759 — 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: Michigan meridian Context triple: [Meridian Township, namedAfter, Michigan meridian]
-
A.
San Bernardino meridian
The San Bernardino meridian is a principal survey meridian used as a reference line for land surveying and mapping in Southern California and parts of Nevada.
-
B.
Humboldt meridian
The Humboldt meridian is a principal survey meridian used as a reference line for land surveying and mapping in parts of northern California.
-
C.
31st parallel north
The 31st parallel north is a circle of latitude in the Northern Hemisphere that has historically served as a significant political boundary, including as a colonial border in the southeastern United States.
-
D.
Twenty Eighth Parallel
"Twenty Eighth Parallel" is an atmospheric instrumental track by Vangelis from his 1992 film score for *1492: Conquest of Paradise*, known for its evocative, cinematic soundscapes.
-
E.
Great Arc of the Meridian
The Great Arc of the Meridian was a monumental 19th-century geodetic survey line across the Indian subcontinent that played a key role in measuring the Earth’s shape and refining global maps.
- 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: Michigan meridian Target entity description: The Michigan meridian is a principal north–south survey line used as a reference for land surveying and mapping throughout the state of Michigan.
-
A.
San Bernardino meridian
The San Bernardino meridian is a principal survey meridian used as a reference line for land surveying and mapping in Southern California and parts of Nevada.
-
B.
Humboldt meridian
The Humboldt meridian is a principal survey meridian used as a reference line for land surveying and mapping in parts of northern California.
-
C.
31st parallel north
The 31st parallel north is a circle of latitude in the Northern Hemisphere that has historically served as a significant political boundary, including as a colonial border in the southeastern United States.
-
D.
Twenty Eighth Parallel
"Twenty Eighth Parallel" is an atmospheric instrumental track by Vangelis from his 1992 film score for *1492: Conquest of Paradise*, known for its evocative, cinematic soundscapes.
-
E.
Great Arc of the Meridian
The Great Arc of the Meridian was a monumental 19th-century geodetic survey line across the Indian subcontinent that played a key role in measuring the Earth’s shape and refining global maps.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
principal meridian
ⓘ
survey meridian ⓘ |
| appliesTo | state of Michigan ⓘ |
| coordinateSystem | Public Land Survey System NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| direction | north–south ⓘ |
| establishedBy | United States General Land Office NERFINISHED ⓘ |
| governsSurveyOf |
most of Lower Peninsula of Michigan
GENERATED
ⓘ
parts of Upper Peninsula of Michigan GENERATED ⓘ |
| hasAssociatedBaseline | Michigan baseline NERFINISHED ⓘ |
| hasNameOrigin | named for the state of Michigan ⓘ |
| hasOrientation | true meridian ⓘ |
| isPrincipalMeridianFor | Michigan land surveys ⓘ |
| legalStatus | statutory survey reference in Michigan ⓘ |
| locatedIn | Michigan NERFINISHED ⓘ |
| partOf | rectangular survey system in Michigan ⓘ |
| passesNear |
Jackson, Michigan
NERFINISHED
ⓘ
Lansing, Michigan NERFINISHED ⓘ |
| referenceFor | public land descriptions in Michigan ⓘ |
| role |
principal north–south survey line
ⓘ
reference line ⓘ |
| separates | eastern and western survey ranges in Michigan ⓘ |
| systemType | geodetic reference line ⓘ |
| usedAsDatumFor | township and range descriptions in Michigan ⓘ |
| usedBy |
cartographers in Michigan
ⓘ
land records offices in Michigan ⓘ surveyors in Michigan ⓘ |
| usedFor |
land surveying
ⓘ
mapping ⓘ |
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: Michigan meridian Description of subject: The Michigan meridian is a principal north–south survey line used as a reference for land surveying and mapping throughout the state of Michigan.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.