ice-free corridor hypothesis
E782793
The ice-free corridor hypothesis proposes that early humans migrated from Beringia into the Americas through a deglaciated passage between the Laurentide and Cordilleran ice sheets during the late Pleistocene.
All labels observed (1)
| Label | Occurrences |
|---|---|
| ice-free corridor hypothesis canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9159130 — 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: ice-free corridor hypothesis Context triple: [Beringian standstill hypothesis, relatedTo, ice-free corridor hypothesis]
-
A.
Indo-Pacific hypothesis
The Indo-Pacific hypothesis is a controversial linguistic proposal suggesting a genetic relationship among various Papuan and other languages across the Indo-Pacific region.
-
B.
Würm glaciation
The Würm glaciation was the last major glacial period of the Pleistocene in the Alps, marked by extensive ice coverage and shaping much of the region’s modern landscape.
-
C.
Farrer hypothesis
The Farrer hypothesis is a theory of New Testament source criticism that proposes the Gospel of Mark was written first, Matthew used Mark, and Luke used both Mark and Matthew, thereby dispensing with the need for a separate Q source.
-
D.
Younger Dryas impact hypothesis
The Younger Dryas impact hypothesis proposes that a comet or asteroid impact around 12,800 years ago triggered abrupt climate cooling, widespread wildfires, and megafaunal extinctions at the onset of the Younger Dryas period.
-
E.
Cenozoic glaciations
Cenozoic glaciations are a series of major ice age cycles during the Cenozoic Era that saw extensive growth and retreat of continental ice sheets, profoundly shaping Earth’s climate and landscapes.
- 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: ice-free corridor hypothesis Target entity description: The ice-free corridor hypothesis proposes that early humans migrated from Beringia into the Americas through a deglaciated passage between the Laurentide and Cordilleran ice sheets during the late Pleistocene.
-
A.
Indo-Pacific hypothesis
The Indo-Pacific hypothesis is a controversial linguistic proposal suggesting a genetic relationship among various Papuan and other languages across the Indo-Pacific region.
-
B.
Würm glaciation
The Würm glaciation was the last major glacial period of the Pleistocene in the Alps, marked by extensive ice coverage and shaping much of the region’s modern landscape.
-
C.
Farrer hypothesis
The Farrer hypothesis is a theory of New Testament source criticism that proposes the Gospel of Mark was written first, Matthew used Mark, and Luke used both Mark and Matthew, thereby dispensing with the need for a separate Q source.
-
D.
Younger Dryas impact hypothesis
The Younger Dryas impact hypothesis proposes that a comet or asteroid impact around 12,800 years ago triggered abrupt climate cooling, widespread wildfires, and megafaunal extinctions at the onset of the Younger Dryas period.
-
E.
Cenozoic glaciations
Cenozoic glaciations are a series of major ice age cycles during the Cenozoic Era that saw extensive growth and retreat of continental ice sheets, profoundly shaping Earth’s climate and landscapes.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
migration hypothesis
ⓘ
scientific hypothesis ⓘ |
| associatedWith |
Beringian standstill hypothesis
ⓘ
Clovis-first model NERFINISHED ⓘ Paleoindian dispersal ⓘ deglaciation chronology ⓘ glacial isostatic rebound ⓘ peopling of the Americas ⓘ |
| challengedBy |
Pacific coastal migration hypothesis
ⓘ
kelp highway hypothesis ⓘ pre-Clovis archaeological evidence ⓘ |
| debatedIssue |
exact timing of corridor deglaciation
ⓘ
habitability of the corridor when first opened ⓘ role as primary versus secondary migration route ⓘ |
| evidenceType |
faunal remains
ⓘ
glacial geomorphology ⓘ lake sediment cores ⓘ paleobotanical data ⓘ paleogenetics ⓘ radiocarbon dating ⓘ |
| field |
American archaeology
ⓘ
Pleistocene geology ⓘ Quaternary archaeology NERFINISHED ⓘ paleoanthropology ⓘ |
| geographicContext |
Alberta
NERFINISHED
ⓘ
British Columbia NERFINISHED ⓘ Cordilleran Ice Sheet NERFINISHED ⓘ Laurentide Ice Sheet NERFINISHED ⓘ Rocky Mountain foothills NERFINISHED ⓘ Yukon NERFINISHED ⓘ western Canada NERFINISHED ⓘ |
| influenced |
archaeological survey strategies in western Canada
ⓘ
models of Paleoindian dispersal across North America ⓘ |
| influencedBy | mid-20th-century Clovis-first consensus ⓘ |
| proposedAs | primary route for initial human entry into the Americas ⓘ |
| proposes |
a deglaciated passage existed between the Laurentide and Cordilleran ice sheets
ⓘ
early humans migrated from Beringia into the Americas through an interior route ⓘ |
| relatedConcept |
glacial corridor
ⓘ
ice-free refugia ⓘ interior continental migration route ⓘ |
| requires |
biologically viable corridor with sufficient flora and fauna
ⓘ
chronological overlap between corridor opening and human presence south of ice sheets ⓘ |
| routeFrom | Beringia NERFINISHED ⓘ |
| routeTo | interior of North America ⓘ |
| status |
contested
ⓘ
partially supported as secondary migration route ⓘ |
| temporalContext |
Last Glacial Maximum
NERFINISHED
ⓘ
late Wisconsin glaciation ⓘ |
| timePeriod | late Pleistocene ⓘ |
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: ice-free corridor hypothesis Description of subject: The ice-free corridor hypothesis proposes that early humans migrated from Beringia into the Americas through a deglaciated passage between the Laurentide and Cordilleran ice sheets during the late Pleistocene.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.