Longitude Act
E785577
The Longitude Act was an 18th-century British law that established substantial financial rewards to encourage the development of accurate methods for determining a ship’s longitude at sea, spurring innovations like marine chronometers.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Longitude Act canonical | 1 |
| Longitude Act 1714 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9215386 — 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: Longitude Act Context triple: [Larcum Kendall K1 chronometer, associatedWith, Longitude Act]
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A.
Geary Act
The Geary Act was an 1892 U.S. law that extended and intensified Chinese exclusion by requiring Chinese residents to carry residency permits and imposing harsh penalties for noncompliance.
-
B.
Durham Report
The Durham Report was an 1839 British governmental report by Lord Durham that analyzed the causes of the 1837–1838 Canadian rebellions and recommended responsible government and the union of Upper and Lower Canada, profoundly shaping Canada's political development.
-
C.
Scott Act
The Scott Act was an 1888 U.S. federal law that drastically tightened Chinese exclusion by prohibiting Chinese laborers who had left the United States from reentering, even if they previously held valid return certificates.
-
D.
Glass–Owen Act
The Glass–Owen Act is the landmark 1913 U.S. law that created the Federal Reserve System as the nation’s central bank to stabilize the financial system and manage monetary policy.
-
E.
Cullom Act
The Cullom Act was a late 19th-century U.S. federal law associated with Senator Shelby M. Cullom, best known for addressing issues of interstate commerce regulation.
- 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: Longitude Act Target entity description: The Longitude Act was an 18th-century British law that established substantial financial rewards to encourage the development of accurate methods for determining a ship’s longitude at sea, spurring innovations like marine chronometers.
-
A.
Geary Act
The Geary Act was an 1892 U.S. law that extended and intensified Chinese exclusion by requiring Chinese residents to carry residency permits and imposing harsh penalties for noncompliance.
-
B.
Durham Report
The Durham Report was an 1839 British governmental report by Lord Durham that analyzed the causes of the 1837–1838 Canadian rebellions and recommended responsible government and the union of Upper and Lower Canada, profoundly shaping Canada's political development.
-
C.
Scott Act
The Scott Act was an 1888 U.S. federal law that drastically tightened Chinese exclusion by prohibiting Chinese laborers who had left the United States from reentering, even if they previously held valid return certificates.
-
D.
Glass–Owen Act
The Glass–Owen Act is the landmark 1913 U.S. law that created the Federal Reserve System as the nation’s central bank to stabilize the financial system and manage monetary policy.
-
E.
Cullom Act
The Cullom Act was a late 19th-century U.S. federal law associated with Senator Shelby M. Cullom, best known for addressing issues of interstate commerce regulation.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Act of Parliament of the United Kingdom
ⓘ
British statute ⓘ |
| administeredBy | Board of Longitude NERFINISHED ⓘ |
| appliesTo |
determination of longitude
ⓘ
navigation at sea ⓘ |
| beneficiary | John Harrison NERFINISHED ⓘ |
| country | Kingdom of Great Britain ⓘ |
| createdInstitution | Board of Longitude NERFINISHED ⓘ |
| dateEnacted | 1714-07-08 ⓘ |
| enactedBy | Parliament of Great Britain NERFINISHED ⓘ |
| establishedBody | Board of Longitude NERFINISHED ⓘ |
| field |
maritime navigation
ⓘ
timekeeping ⓘ |
| hasEffectOn |
Royal Navy navigation practices
ⓘ
merchant shipping navigation practices ⓘ |
| historicalPeriod | 18th century ⓘ |
| influencedPerson |
John Harrison
NERFINISHED
ⓘ
Nevil Maskelyne NERFINISHED ⓘ |
| jurisdiction | Parliament of Great Britain NERFINISHED ⓘ |
| languageOfWork | English ⓘ |
| legalStatus | public act ⓘ |
| locationOfEnactment | London NERFINISHED ⓘ |
| longTitle | An Act for providing a publick Reward for such Person or Persons as shall discover the Longitude at Sea NERFINISHED ⓘ |
| motivatedInnovation |
lunar distance method
ⓘ
marine chronometer ⓘ |
| offeredReward |
£10,000 for finding longitude within 1 degree
ⓘ
£15,000 for finding longitude within 2/3 of a degree ⓘ £20,000 for finding longitude within 1/2 degree ⓘ |
| purpose |
to encourage the development of accurate methods for determining longitude at sea
ⓘ
to improve maritime navigation safety ⓘ to reduce shipwrecks and losses in long‑distance sea voyages ⓘ |
| reasonForEnactment |
difficulty of determining longitude at sea
ⓘ
frequent shipwrecks due to navigational errors ⓘ |
| relatedTo |
Age of Sail
NERFINISHED
ⓘ
Board of Longitude NERFINISHED ⓘ British maritime expansion ⓘ marine chronometer ⓘ |
| rewardCondition | demonstration of a practical method to determine longitude at sea ⓘ |
| rewardCurrency | pounds sterling ⓘ |
| shortTitle | Longitude Act 1714 NERFINISHED ⓘ |
| signedBy | Queen Anne NERFINISHED ⓘ |
| sponsor | government of Queen Anne ⓘ |
| subjectMatter |
longitude
ⓘ
maritime safety ⓘ navigation ⓘ |
| typeOfReward | monetary prize ⓘ |
| verificationMethod | sea trials under supervision of the Board of Longitude ⓘ |
| yearEnacted | 1714 ⓘ |
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: Longitude Act Description of subject: The Longitude Act was an 18th-century British law that established substantial financial rewards to encourage the development of accurate methods for determining a ship’s longitude at sea, spurring innovations like marine chronometers.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Longitude Act 1714