Webster–Ashburton Treaty

E363481

bilateral treaty historical event international agreement

The Webster–Ashburton Treaty was an 1842 agreement between the United States and Great Britain that settled long-standing border disputes in the Northeast and improved Anglo-American relations.

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All labels observed (2)

Label	Occurrences
Webster–Ashburton Treaty canonical	14
Webster–Ashburton Treaty (1842)	1

How this entity was disambiguated

This entity first appeared as the object of triple T3491173 — 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: Webster–Ashburton Treaty
Context triple: [Aroostook War, result, Webster–Ashburton Treaty]

A. Rush–Bagot Agreement
The Rush–Bagot Agreement was an 1817 accord between the United States and Great Britain that largely demilitarized the Great Lakes and marked a significant step toward peaceful relations and disarmament along the U.S.-Canadian border.
B. Oregon Treaty of 1846
The Oregon Treaty of 1846 was an agreement between the United States and Great Britain that peacefully settled their competing claims in the Pacific Northwest by establishing the 49th parallel as the boundary west of the Rocky Mountains.
C. Treaty of Ghent
The Treaty of Ghent was the 1814 peace agreement between the United States and Great Britain that ended the War of 1812 and largely restored relations and territorial boundaries to their prewar status.
D. Convention of 1818
The Convention of 1818 was an agreement between the United States and Great Britain that settled parts of the U.S.-Canada boundary and established joint occupation of the Oregon Country.
E. Adams–Onís Treaty
The Adams–Onís Treaty was an 1819 agreement between the United States and Spain that ceded Florida to the U.S. and defined the boundary between U.S. and Spanish territories in North America.
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: Webster–Ashburton Treaty
Target entity description: The Webster–Ashburton Treaty was an 1842 agreement between the United States and Great Britain that settled long-standing border disputes in the Northeast and improved Anglo-American relations.

A. Rush–Bagot Agreement
The Rush–Bagot Agreement was an 1817 accord between the United States and Great Britain that largely demilitarized the Great Lakes and marked a significant step toward peaceful relations and disarmament along the U.S.-Canadian border.
B. Oregon Treaty of 1846
The Oregon Treaty of 1846 was an agreement between the United States and Great Britain that peacefully settled their competing claims in the Pacific Northwest by establishing the 49th parallel as the boundary west of the Rocky Mountains.
C. Treaty of Ghent
The Treaty of Ghent was the 1814 peace agreement between the United States and Great Britain that ended the War of 1812 and largely restored relations and territorial boundaries to their prewar status.
D. Convention of 1818
The Convention of 1818 was an agreement between the United States and Great Britain that settled parts of the U.S.-Canada boundary and established joint occupation of the Oregon Country.
E. Adams–Onís Treaty
The Adams–Onís Treaty was an 1819 agreement between the United States and Spain that ceded Florida to the U.S. and defined the boundary between U.S. and Spanish territories in North America.
F. None of above. chosen

Statements (47)

Predicate	Object
instanceOf	bilateral treaty ⓘ historical event ⓘ international agreement ⓘ
aimedTo	improve Anglo-American relations ⓘ
appliesToRegion	British America ⓘ surface form: British North America Great Lakes region ⓘ Lake Superior ⓘ Lake of the Woods ⓘ Maine ⓘ Minnesota ⓘ New Brunswick ⓘ Northeastern United States ⓘ
countryAffected	Canada ⓘ United Kingdom ⓘ United States of America ⓘ surface form: United States
countrySignatory	United Kingdom ⓘ United States of America ⓘ surface form: United States
dateSigned	1842-08-09 ⓘ
definedBorderBetween	Canada ⓘ Lake Superior and Lake of the Woods ⓘ Maine ⓘ New Brunswick ⓘ United States of America ⓘ surface form: United States
field	diplomatic history ⓘ
hasEffect	stabilization of the U.S.–British North American border in the Northeast ⓘ
language	English ⓘ
legalStatus	ratified treaty ⓘ
locationSigned	Washington, D.C. ⓘ
namedAfter	Lord Ashburton ⓘ surface form: Alexander Baring, 1st Baron Ashburton Daniel Webster ⓘ
negotiator	Lord Ashburton ⓘ surface form: Alexander Baring, 1st Baron Ashburton Daniel Webster ⓘ
otherParty	Great Britain ⓘ
partOf	Anglo-American relations ⓘ
precededBy	Treaty of Paris (1783) ⓘ
providedFor	cooperation in suppressing the slave trade ⓘ mutual extradition of certain criminals ⓘ
relatedTo	Oregon boundary dispute ⓘ Treaty of Ghent ⓘ
resolvedConflict	Aroostook War ⓘ Maine–New Brunswick boundary dispute ⓘ Northeast boundary dispute between the United States and British North America ⓘ
subject	border disputes ⓘ boundary delimitation ⓘ extradition ⓘ slave trade suppression ⓘ
yearSigned	1842 ⓘ

How these facts were elicited

Referenced by (15)

Full triples — surface form annotated when it differs from this entity's canonical label.

Aroostook War → result → Webster–Ashburton Treaty ⓘ

Aroostook War → resolvedBy → Webster–Ashburton Treaty ⓘ

Aroostook War → relatedTo → Webster–Ashburton Treaty ⓘ

this entity surface form: Webster–Ashburton Treaty (1842)

Canada–United States border → historicalTreaty → Webster–Ashburton Treaty ⓘ

Convention of 1818 → followedBy → Webster–Ashburton Treaty ⓘ

Northwest Angle → boundaryClarifiedBy → Webster–Ashburton Treaty ⓘ

Anglo-American wars → notableEvent → Webster–Ashburton Treaty ⓘ

Caroline affair → resolvedBy → Webster–Ashburton Treaty ⓘ

Webster–Ashburton Treaty negotiations → result → Webster–Ashburton Treaty ⓘ

Maine–New Brunswick border → establishedByTreaty → Webster–Ashburton Treaty ⓘ

Maine–New Brunswick border → disputeResolvedBy → Webster–Ashburton Treaty ⓘ

Pork and Beans War → result → Webster–Ashburton Treaty ⓘ

Pork and Beans War → settledBy → Webster–Ashburton Treaty ⓘ

Lord Ashburton → knownFor → Webster–Ashburton Treaty ⓘ

subject surface form: Alexander Baring, 1st Baron Ashburton

Lord Ashburton → negotiated → Webster–Ashburton Treaty ⓘ