Treaty of Mesilla
E232203
The Treaty of Mesilla was an 1853 agreement between the United States and Mexico that finalized the Gadsden Purchase, transferring land in present-day southern Arizona and New Mexico to the U.S. to facilitate a southern transcontinental railroad route.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Treaty of Mesilla canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2066916 — 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: Treaty of Mesilla Context triple: [Gadsden Purchase agreement, alsoKnownAs, Treaty of Mesilla]
-
A.
Treaties of Velasco
The Treaties of Velasco were 1836 agreements between the newly independent Republic of Texas and captured Mexican president Antonio López de Santa Anna that sought to end hostilities after the Battle of San Jacinto and define Texas–Mexico relations.
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B.
Treaty of Guadalupe Hidalgo
The Treaty of Guadalupe Hidalgo was the 1848 peace agreement that ended the Mexican–American War and transferred vast territories from Mexico to the United States, shaping the modern U.S.–Mexico border.
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C.
Treaties of Mexico
Treaties of Mexico are formal international agreements that define Mexico’s legal, economic, and political relations with other countries and organizations.
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D.
Treaty of Fort Finney
The Treaty of Fort Finney was a 1786 agreement in which several Shawnee leaders ceded large tracts of land in the Ohio River Valley to the United States, helping set the stage for escalating conflicts that became the Northwest Indian War.
-
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: Treaty of Mesilla Target entity description: The Treaty of Mesilla was an 1853 agreement between the United States and Mexico that finalized the Gadsden Purchase, transferring land in present-day southern Arizona and New Mexico to the U.S. to facilitate a southern transcontinental railroad route.
-
A.
Treaties of Velasco
The Treaties of Velasco were 1836 agreements between the newly independent Republic of Texas and captured Mexican president Antonio López de Santa Anna that sought to end hostilities after the Battle of San Jacinto and define Texas–Mexico relations.
-
B.
Treaty of Guadalupe Hidalgo
The Treaty of Guadalupe Hidalgo was the 1848 peace agreement that ended the Mexican–American War and transferred vast territories from Mexico to the United States, shaping the modern U.S.–Mexico border.
-
C.
Treaties of Mexico
Treaties of Mexico are formal international agreements that define Mexico’s legal, economic, and political relations with other countries and organizations.
-
D.
Treaty of Fort Finney
The Treaty of Fort Finney was a 1786 agreement in which several Shawnee leaders ceded large tracts of land in the Ohio River Valley to the United States, helping set the stage for escalating conflicts that became the Northwest Indian War.
-
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 (43)
| Predicate | Object |
|---|---|
| instanceOf |
bilateral treaty
ⓘ
international agreement ⓘ |
| alsoKnownAs |
Gadsden Purchase agreement
ⓘ
surface form:
Gadsden Purchase Treaty
|
| appliesToJurisdiction |
territory that later became part of Arizona
ⓘ
territory that later became part of New Mexico ⓘ |
| category |
1853 in international relations
ⓘ
Boundary treaties ⓘ Treaties of Mexico ⓘ Treaties of the United States ⓘ |
| countrySignatory |
Mexico
ⓘ
United States of America ⓘ |
| currencyOfPayment |
US dollar
ⓘ
surface form:
United States dollar
|
| dateSigned | 1853-12-30 ⓘ |
| follows | Treaty of Guadalupe Hidalgo ⓘ |
| governs | ownership of the Gadsden Purchase territory ⓘ |
| hasEffectOn |
United States and Mexico
ⓘ
surface form:
Mexico–United States relations
expansion of the contiguous United States ⓘ route planning for a southern transcontinental railroad ⓘ |
| historicalPeriod | post–Mexican–American War era ⓘ |
| language |
English
ⓘ
Spanish ⓘ |
| legalForm | written treaty ⓘ |
| legalStatus | ratified treaty ⓘ |
| locationSigned | Mexico City ⓘ |
| namedAfter |
Mesilla, New Mexico
ⓘ
surface form:
Mesilla
|
| negotiatedBy | James Gadsden ⓘ |
| partOf |
Gadsden Purchase agreement
ⓘ
surface form:
Gadsden Purchase
|
| purpose |
to facilitate a southern transcontinental railroad route
ⓘ
to finalize the Gadsden Purchase ⓘ to resolve remaining boundary disputes after the Mexican–American War ⓘ |
| ratifiedBy |
Government of Mexico
ⓘ
surface form:
Mexican government
United States Senate ⓘ |
| resultedIn |
adjustment of the Mexico–United States border
ⓘ
cession of land in present-day southern Arizona to the United States ⓘ cession of land in present-day southern New Mexico to the United States ⓘ transfer of territory from Mexico to the United States ⓘ |
| signatoryRepresentative |
Antonio López de Santa Anna
ⓘ
James Gadsden ⓘ |
| stipulatedPayment | 10000000 United States dollars ⓘ |
| subject |
international boundary delimitation
ⓘ
land cession ⓘ railroad right-of-way ⓘ |
| yearSigned | 1853 ⓘ |
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: Treaty of Mesilla Description of subject: The Treaty of Mesilla was an 1853 agreement between the United States and Mexico that finalized the Gadsden Purchase, transferring land in present-day southern Arizona and New Mexico to the U.S. to facilitate a southern transcontinental railroad route.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.