Treaty with the Tribes of Middle Oregon (1855)
E562291
The Treaty with the Tribes of Middle Oregon (1855) was an agreement in which several Indigenous groups of central Oregon, including the Wasco people, ceded large portions of their ancestral lands to the United States in exchange for reservations and promised protections.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Treaty with the Tribes of Middle Oregon (1855) canonical | 3 |
| Treaty of 1855 (Grand Ronde) | 1 |
| Treaty with the Kalapuya, etc. (1855) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5991669 — 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 with the Tribes of Middle Oregon (1855) Context triple: [Wasco people, treaty, Treaty with the Tribes of Middle Oregon (1855)]
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A.
Treaty of Walla Walla (1855)
The Treaty of Walla Walla (1855) was an agreement between the U.S. government and several Plateau tribes, including the Yakama, Walla Walla, Cayuse, and Umatilla, that ceded vast Indigenous lands in the Pacific Northwest in exchange for reservations and other promised provisions.
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B.
Treaty of 1855
The Treaty of 1855 was an agreement between the United States and the Nez Perce that established a reservation and recognized certain tribal rights while ceding large areas of the tribe’s traditional lands.
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C.
Treaty of Medicine Creek
The Treaty of Medicine Creek was an 1854 agreement in Washington Territory in which several Coast Salish tribes ceded large portions of their ancestral lands to the United States in exchange for reservations, fishing rights, and other provisions.
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D.
Treaty of Point Elliott
The Treaty of Point Elliott was an 1855 agreement in Washington Territory in which several Coast Salish tribes ceded large portions of their ancestral lands to the United States in exchange for reservations, fishing rights, and other guarantees.
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E.
Treaty of Lewistown
The Treaty of Lewistown was an early 19th-century agreement in which the Shawnee ceded lands in Ohio to the United States, contributing to their displacement from the region.
- 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 with the Tribes of Middle Oregon (1855) Target entity description: The Treaty with the Tribes of Middle Oregon (1855) was an agreement in which several Indigenous groups of central Oregon, including the Wasco people, ceded large portions of their ancestral lands to the United States in exchange for reservations and promised protections.
-
A.
Treaty of Walla Walla (1855)
The Treaty of Walla Walla (1855) was an agreement between the U.S. government and several Plateau tribes, including the Yakama, Walla Walla, Cayuse, and Umatilla, that ceded vast Indigenous lands in the Pacific Northwest in exchange for reservations and other promised provisions.
-
B.
Treaty of 1855
The Treaty of 1855 was an agreement between the United States and the Nez Perce that established a reservation and recognized certain tribal rights while ceding large areas of the tribe’s traditional lands.
-
C.
Treaty of Medicine Creek
The Treaty of Medicine Creek was an 1854 agreement in Washington Territory in which several Coast Salish tribes ceded large portions of their ancestral lands to the United States in exchange for reservations, fishing rights, and other provisions.
-
D.
Treaty of Point Elliott
The Treaty of Point Elliott was an 1855 agreement in Washington Territory in which several Coast Salish tribes ceded large portions of their ancestral lands to the United States in exchange for reservations, fishing rights, and other guarantees.
-
E.
Treaty of Lewistown
The Treaty of Lewistown was an early 19th-century agreement in which the Shawnee ceded lands in Ohio to the United States, contributing to their displacement from the region.
- F. None of above. chosen
Statements (38)
| Predicate | Object |
|---|---|
| instanceOf | treaty ⓘ |
| appliesToEthnicGroup |
Indigenous peoples of central Oregon
ⓘ
linked to:
Indigenous peoples of Oregon
Wasco people ⓘ |
| appliesToTerritorialJurisdiction | Oregon Territory ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| documentType | bilateral agreement ⓘ |
| effect |
cession of large portions of ancestral lands by the tribes of Middle Oregon
ⓘ
creation of reservation lands for signatory tribes ⓘ imposition of United States jurisdiction over ceded territory ⓘ |
| follows | earlier Pacific Northwest Indian treaties of the 1850s ⓘ |
| guarantees |
promised protections by the United States to signatory tribes
ⓘ
reservation lands for signatory tribes ⓘ |
| hasConsequence |
loss of traditional homelands for tribes of Middle Oregon
ⓘ
relocation of tribal communities to reservations ⓘ |
| hasLanguage | English ⓘ |
| historicalPeriod | 19th century ⓘ |
| jurisdiction |
federal government of the United States
ⓘ
linked to:
United States government
|
| legalStatus | federal Indian treaty ⓘ |
| location |
Oregon
ⓘ
central Oregon ⓘ |
| mainSubject |
Native American reservations
ⓘ
federal protection of Indigenous peoples ⓘ land cession ⓘ |
| partOf | United States Indian treaty system ⓘ |
| purpose |
to define relations between the United States and the tribes of Middle Oregon
ⓘ
to establish reservations for the tribes of Middle Oregon ⓘ to obtain cession of Indigenous lands in central Oregon ⓘ |
| regulates |
land rights of tribes of Middle Oregon
ⓘ
use and occupation of reservation lands ⓘ |
| relatedTo |
United States Indigenous policy in the 1850s
ⓘ
Wasco–Wishram peoples ⓘ history of Oregon ⓘ |
| signatory |
United States government
ⓘ
Wasco people ⓘ tribes of Middle Oregon ⓘ |
| signingDate | 1855 ⓘ |
| topic |
United States expansion in the Pacific Northwest
ⓘ
dispossession of Indigenous lands in Oregon ⓘ |
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 with the Tribes of Middle Oregon (1855) Description of subject: The Treaty with the Tribes of Middle Oregon (1855) was an agreement in which several Indigenous groups of central Oregon, including the Wasco people, ceded large portions of their ancestral lands to the United States in exchange for reservations and promised protections.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Treaty with the Tribes of Middle Oregon (1855)
Confederated Tribes of the Warm Springs Reservation of Oregon
→
significantTreaty
→
Treaty with the Tribes of Middle Oregon (1855)
ⓘ
linked to: Treaty with the Tribes of Middle Oregon (1855)
Warm Springs Indian Reservation
→
subjectToTreaty
→
Treaty with the Tribes of Middle Oregon (1855)
ⓘ