Adams–Onís Treaty

E229518

bilateral treaty historical event international agreement

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.

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All labels observed (7)

Label	Occurrences
Adams–Onís Treaty canonical	13
Florida Purchase Treaty	3
Adams–Onís Treaty of 1819	2
Adams-Onís Treaty of 1819	1
Transcontinental Treaty between the United States and Spain	1
Transcontinental Treaty of 1819	1
United States–Spain boundary settlement	1

How this entity was disambiguated

This entity first appeared as the object of triple T2040536 — 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: Adams–Onís Treaty
Context triple: [Era of Good Feelings, significantEvent, Adams–Onís Treaty]

A. Pinckney's Treaty
Pinckney's Treaty was a 1795 agreement between the United States and Spain that settled territorial disputes and granted Americans navigation rights on the Mississippi River and access to the port of New Orleans.
B. 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.
C. Treaty of Washington (1826)
The Treaty of Washington (1826) was an agreement in which the Muscogee (Creek) Nation ceded large portions of their remaining lands in the southeastern United States to the U.S. government, furthering Native American dispossession and paving the way for increased white settlement.
D. 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.
E. Hay–Bunau-Varilla Treaty
The Hay–Bunau-Varilla Treaty was the 1903 agreement between the United States and Panama that granted the U.S. extensive control over the Panama Canal Zone and the construction of the Panama Canal.
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: Adams–Onís Treaty
Target entity description: 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.

A. Pinckney's Treaty
Pinckney's Treaty was a 1795 agreement between the United States and Spain that settled territorial disputes and granted Americans navigation rights on the Mississippi River and access to the port of New Orleans.
B. 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.
C. Treaty of Washington (1826)
The Treaty of Washington (1826) was an agreement in which the Muscogee (Creek) Nation ceded large portions of their remaining lands in the southeastern United States to the U.S. government, furthering Native American dispossession and paving the way for increased white settlement.
D. 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.
E. Hay–Bunau-Varilla Treaty
The Hay–Bunau-Varilla Treaty was the 1903 agreement between the United States and Panama that granted the U.S. extensive control over the Panama Canal Zone and the construction of the Panama Canal.
F. None of above. chosen

Statements (49)

Predicate	Object
instanceOf	bilateral treaty ⓘ historical event ⓘ international agreement ⓘ
affectedRegion	Louisiana Territory ⓘ Oregon Country ⓘ Spanish Florida ⓘ Texas ⓘ
alsoKnownAs	Florida Purchase Treaty ⓘ linked to: Adams–Onís Treaty Florida Treaty ⓘ Transcontinental Treaty ⓘ
cededTerritory	East Florida ⓘ Florida ⓘ West Florida ⓘ
compensationType	assumption of American claims against Spain ⓘ
countryCedingTerritory	Spain ⓘ
countryReceivingTerritory	United States of America ⓘ
definedBoundaryBetween	Spanish Empire in North America ⓘ linked to: Spanish America United States of America ⓘ
definedWesternBoundaryOf	Louisiana Purchase ⓘ
enteredIntoForceOn	1821-02-22 ⓘ
establishedBoundaryAlong	42nd parallel north ⓘ Arkansas River ⓘ Red River ⓘ linked to: Red River of the South Sabine River ⓘ
governingLawArea	cession of territory ⓘ territorial boundaries ⓘ
historicalContext	post-War of 1812 U.S. expansion ⓘ
historicalPeriod	Era of Good Feelings ⓘ
language	English ⓘ Spanish ⓘ
locationOfSigning	United States Department of State building (historic) ⓘ linked to: U.S. Department of State headquarters
namedAfter	John Quincy Adams ⓘ Luis de Onís ⓘ
negotiatedBy	John Quincy Adams ⓘ Luis de Onís ⓘ
precedes	Mexican War of Independence territorial settlements ⓘ
providedCompensationAmount	5000000 U.S. dollars ⓘ
ratifiedBy	King Ferdinand VII of Spain ⓘ linked to: Ferdinand VII of Spain United States Senate ⓘ
relatedEvent	First Seminole War ⓘ
resultedIn	cession of Florida to the United States ⓘ recognition of U.S. claims to Oregon Country north of the 42nd parallel ⓘ renunciation by the United States of claims to Texas ⓘ
signatory	Kingdom of Spain ⓘ United States of America ⓘ
signedIn	Washington, D.C. ⓘ
signedOn	1819-02-22 ⓘ
subjectMatter	international borders in North America ⓘ transfer of sovereignty ⓘ

How these facts were elicited

Referenced by (22)

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

Era of Good Feelings → significantEvent → Adams–Onís Treaty ⓘ

First Seminole War → treaty → Adams–Onís Treaty ⓘ

Presidency of James Monroe → hasPart → Adams–Onís Treaty ⓘ

Presidency of James Monroe → significantEvent → Adams–Onís Treaty of 1819 ⓘ

linked to: Adams–Onís Treaty

United States–Spain relations → historicalEvent → Adams–Onís Treaty ⓘ

United States–Spain relations → keyTreaty → Adams–Onís Treaty of 1819 ⓘ

linked to: Adams–Onís Treaty

Spanish Florida → cededByTreaty → Adams–Onís Treaty ⓘ

Adams–Onís Treaty → alsoKnownAs → Florida Purchase Treaty ⓘ

linked to: Adams–Onís Treaty

Alabama–Florida state line → definedBy → Adams–Onís Treaty ⓘ

United States v. The Amistad → treatyCited → Adams–Onís Treaty ⓘ

Florida frontier → associatedWithEvent → Adams–Onís Treaty ⓘ

Transcontinental Treaty → hasFormalName → Adams–Onís Treaty ⓘ

Transcontinental Treaty → hasAlternativeName → Adams-Onís Treaty of 1819 ⓘ

linked to: Adams–Onís Treaty

Transcontinental Treaty → hasAlternativeName → Florida Purchase Treaty ⓘ

linked to: Adams–Onís Treaty

Transcontinental Treaty → hasAlternativeName → Transcontinental Treaty of 1819 ⓘ

linked to: Adams–Onís Treaty

Florida Treaty → hasFormalName → Adams–Onís Treaty ⓘ

Florida Treaty → hasAlternativeName → Florida Purchase Treaty ⓘ

linked to: Adams–Onís Treaty

Luis de Onís → notableWork → Adams–Onís Treaty ⓘ

Luis de Onís → signedTreaty → Adams–Onís Treaty ⓘ

Luis de Onís → signedTreaty → Transcontinental Treaty between the United States and Spain ⓘ

linked to: Adams–Onís Treaty

Luis de Onís → influenced → United States–Spain boundary settlement ⓘ

linked to: Adams–Onís Treaty

Greer County, Texas (historical) → claimedUnderTreatyInterpretation → Adams–Onís Treaty ⓘ

All labels observed (7)

How this entity was disambiguated Show

Statements (49)

How these facts were elicited Show

Referenced by (22)

How this entity was disambiguated

How these facts were elicited