Wilmot Proviso
E311072
The Wilmot Proviso was a proposed 1846 U.S. legislative amendment that sought to ban slavery in any territory acquired from Mexico, intensifying sectional tensions and shaping antebellum politics.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Wilmot Proviso canonical | 3 |
| supported Wilmot Proviso | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2926899 — 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: Wilmot Proviso Context triple: [1848 United States presidential election, keyIssue, Wilmot Proviso]
-
A.
Compromise of 1850
The Compromise of 1850 was a package of U.S. laws intended to ease sectional tensions over slavery and territorial expansion, notably admitting California as a free state while strengthening the Fugitive Slave Act.
-
B.
Missouri Compromise
The Missouri Compromise was an 1820 U.S. federal statute that temporarily eased sectional tensions by admitting Missouri as a slave state and Maine as a free state while banning slavery in most of the remaining Louisiana Territory north of the 36°30′ parallel.
-
C.
Kansas–Nebraska Act
The Kansas–Nebraska Act was an 1854 U.S. law that created the territories of Kansas and Nebraska and inflamed sectional tensions by allowing settlers there to decide the legality of slavery through popular sovereignty, effectively nullifying the Missouri Compromise.
-
D.
Newlands Resolution
The Newlands Resolution was the 1898 joint resolution by the U.S. Congress that annexed Hawaii, marking a key moment in American imperial expansion into the Pacific.
-
E.
Tallmadge Amendment debate
The Tallmadge Amendment debate was a pivotal 1819–1820 congressional clash over restricting slavery in Missouri that exposed deep sectional tensions and foreshadowed the collapse of the Era of Good Feelings.
- 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: Wilmot Proviso Target entity description: The Wilmot Proviso was a proposed 1846 U.S. legislative amendment that sought to ban slavery in any territory acquired from Mexico, intensifying sectional tensions and shaping antebellum politics.
-
A.
Compromise of 1850
The Compromise of 1850 was a package of U.S. laws intended to ease sectional tensions over slavery and territorial expansion, notably admitting California as a free state while strengthening the Fugitive Slave Act.
-
B.
Missouri Compromise
The Missouri Compromise was an 1820 U.S. federal statute that temporarily eased sectional tensions by admitting Missouri as a slave state and Maine as a free state while banning slavery in most of the remaining Louisiana Territory north of the 36°30′ parallel.
-
C.
Kansas–Nebraska Act
The Kansas–Nebraska Act was an 1854 U.S. law that created the territories of Kansas and Nebraska and inflamed sectional tensions by allowing settlers there to decide the legality of slavery through popular sovereignty, effectively nullifying the Missouri Compromise.
-
D.
Newlands Resolution
The Newlands Resolution was the 1898 joint resolution by the U.S. Congress that annexed Hawaii, marking a key moment in American imperial expansion into the Pacific.
-
E.
Tallmadge Amendment debate
The Tallmadge Amendment debate was a pivotal 1819–1820 congressional clash over restricting slavery in Missouri that exposed deep sectional tensions and foreshadowed the collapse of the Era of Good Feelings.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
antebellum-era political proposal
ⓘ
proposed United States legislative amendment ⓘ |
| appliesTo |
Treaty of Guadalupe Hidalgo
ⓘ
surface form:
Mexican Cession
territories acquired from Mexico ⓘ |
| appliesToJurisdiction | United States Congress ⓘ |
| attachedTo | war appropriations bill for negotiations with Mexico ⓘ |
| chronology | introduced multiple times between 1846 and 1848 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| dateProposed | 1846-08-08 ⓘ |
| describedIn | congressional debates of the late 1840s ⓘ |
| fieldOfWork | U.S. federal legislation on slavery ⓘ |
| goal |
to ban involuntary servitude in territories taken from Mexico
ⓘ
to prohibit slavery in any territory acquired from Mexico ⓘ |
| hasEffect |
intensified sectional tensions over slavery
ⓘ
shaped antebellum U.S. politics ⓘ |
| hasHistoricalSignificance | early explicit congressional attempt to restrict slavery’s westward expansion ⓘ |
| historicalPeriod | Antebellum period ⓘ |
| ideologicalPosition |
anti-slavery expansion
ⓘ
free soil ⓘ |
| influenced |
development of the Republican Party
ⓘ
rise of the Free Soil Party ⓘ sectional polarization between North and South ⓘ |
| languageSummary | stipulated that neither slavery nor involuntary servitude shall ever exist in any territory acquired from Mexico ⓘ |
| legalEffectIfAdopted | ban on slavery in Mexican Cession territories ⓘ |
| legalForm | amendment to an appropriations bill ⓘ |
| legislativeBody |
United States House of Representatives
ⓘ
United States Senate ⓘ |
| legislativeOutcome |
failed in the U.S. Senate
ⓘ
passed the U.S. House of Representatives ⓘ |
| legislativeSession | 29th United States Congress ⓘ |
| mainSubject | slavery in United States territories ⓘ |
| namedAfter | David Wilmot ⓘ |
| opposedBy |
Southern Democrats
ⓘ
many Southern Whigs ⓘ |
| partOf | Mexican–American War era politics ⓘ |
| pointInTime | 1846 ⓘ |
| proposedBy |
David Wilmot
ⓘ
Wilmot, David ⓘ |
| proposerOccupation | U.S. Representative ⓘ |
| proposerState | Pennsylvania ⓘ |
| reasonForOpposition | perceived threat to slaveholding interests ⓘ |
| reasonForSupport | desire to reserve western lands for free white labor ⓘ |
| relatedConflict | Mexican–American War ⓘ |
| relatedTo |
Compromise of 1850
ⓘ
Kansas–Nebraska Act ⓘ Missouri Compromise ⓘ |
| status | never enacted into law ⓘ |
| supportedBy |
Northern Democratic Party
ⓘ
surface form:
Northern Democrats
many Northern Whigs ⓘ |
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: Wilmot Proviso Description of subject: The Wilmot Proviso was a proposed 1846 U.S. legislative amendment that sought to ban slavery in any territory acquired from Mexico, intensifying sectional tensions and shaping antebellum politics.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
supported Wilmot Proviso
subject surface form:
Slave Power Controversy