Ra II papyrus boat
E551990
The Ra II papyrus boat is the reed vessel built and sailed by Norwegian explorer Thor Heyerdahl in 1970 to demonstrate the possibility of ancient transatlantic voyages using traditional materials and techniques.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Ra II (boat) | 1 |
| Ra II papyrus boat canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5837957 — 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: Ra II papyrus boat Context triple: [Kon-Tiki Museum, exhibits, Ra II papyrus boat]
-
A.
Khufu ship
The Khufu ship is an ancient full-sized cedarwood vessel, over 4,500 years old, discovered buried near the Great Pyramid and believed to have been intended for the pharaoh Khufu’s use in the afterlife.
-
B.
Marble Boat
The Marble Boat is an ornate lakeside pavilion in Beijing’s Summer Palace, built to resemble a stone ship and symbolizing the Qing dynasty’s imperial grandeur.
-
C.
Tablet of Ahkmenrah
The Tablet of Ahkmenrah is a magical Egyptian artifact in the "Night at the Museum" film series that brings museum exhibits to life each night.
-
D.
Shabaka Stone
The Shabaka Stone is an ancient Egyptian basalt slab inscribed with a theological and cosmological text from the 25th Dynasty that preserves a Memphite creation myth and early philosophical ideas about the god Ptah.
-
E.
Akhmim wooden coffins
The Akhmim wooden coffins are a group of elaborately decorated ancient Egyptian burial coffins discovered in the Akhmim region, notable for their rich iconography and insights into local funerary practices.
- 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: Ra II papyrus boat Target entity description: The Ra II papyrus boat is the reed vessel built and sailed by Norwegian explorer Thor Heyerdahl in 1970 to demonstrate the possibility of ancient transatlantic voyages using traditional materials and techniques.
-
A.
Khufu ship
The Khufu ship is an ancient full-sized cedarwood vessel, over 4,500 years old, discovered buried near the Great Pyramid and believed to have been intended for the pharaoh Khufu’s use in the afterlife.
-
B.
Marble Boat
The Marble Boat is an ornate lakeside pavilion in Beijing’s Summer Palace, built to resemble a stone ship and symbolizing the Qing dynasty’s imperial grandeur.
-
C.
Tablet of Ahkmenrah
The Tablet of Ahkmenrah is a magical Egyptian artifact in the "Night at the Museum" film series that brings museum exhibits to life each night.
-
D.
Shabaka Stone
The Shabaka Stone is an ancient Egyptian basalt slab inscribed with a theological and cosmological text from the 25th Dynasty that preserves a Memphite creation myth and early philosophical ideas about the god Ptah.
-
E.
Akhmim wooden coffins
The Akhmim wooden coffins are a group of elaborately decorated ancient Egyptian burial coffins discovered in the Akhmim region, notable for their rich iconography and insights into local funerary practices.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
experimental archaeology vessel
ⓘ
ocean-going reed boat ⓘ papyrus boat ⓘ |
| arrivalPort | Barbados ⓘ |
| associatedWithPerson | Thor Heyerdahl ⓘ |
| associatedWithTheory | pre-Columbian transoceanic contact ⓘ |
| builtBy |
Aymara reed boat builders
ⓘ
Bolivian reed boat builders ⓘ |
| builtFor | experimental voyage ⓘ |
| captain | Thor Heyerdahl ⓘ |
| constructedFrom |
papyrus reeds
ⓘ
rope lashings ⓘ |
| constructedUsing | traditional reed boat techniques ⓘ |
| constructionSite | Morocco ⓘ |
| crewNationality | multinational crew ⓘ |
| crewSize | 7 ⓘ |
| culturalSignificance | symbol of experimental archaeology in maritime history ⓘ |
| demonstrated |
feasibility of long-distance ocean travel using ancient-style vessels
ⓘ
seaworthiness of large papyrus reed boats ⓘ |
| departureCountry | Morocco ⓘ |
| departurePort |
Safi, Morocco
ⓘ
linked to:
Marrakesh-Safi
|
| designer | Thor Heyerdahl ⓘ |
| documentedIn |
book "The Ra Expeditions"
ⓘ
documentary film about the Ra voyages ⓘ |
| expeditionLeader | Thor Heyerdahl ⓘ |
| expeditionName | Ra II expedition ⓘ |
| historicalPeriod | 20th century ⓘ |
| homeportForExpedition | Safi ⓘ |
| inspiredBy | ancient Egyptian and Mesopotamian reed boats ⓘ |
| launchDate | 1970 ⓘ |
| namedAfter |
Egyptian sun god Ra
ⓘ
linked to:
Re (sun god)
|
| notableCrewMember | Thor Heyerdahl ⓘ |
| operatingEnvironment | Atlantic Ocean ⓘ |
| operator | Thor Heyerdahl ⓘ |
| predecessor |
Ra papyrus boat
ⓘ
linked to:
Ra papyrus boat remains
|
| propulsion | sail ⓘ |
| purpose |
to demonstrate possibility of ancient transatlantic voyages
ⓘ
to test diffusionist theories of cultural contact ⓘ |
| reasonForNewDesign | failure of first Ra boat in 1969 attempt ⓘ |
| route | Atlantic Ocean crossing from North Africa to the Caribbean ⓘ |
| safetyEquipment | modern navigation and safety gear ⓘ |
| status | completed successful Atlantic crossing in 1970 ⓘ |
| successorTo | Ra papyrus boat ⓘ |
| voyageDuration | about 57 days ⓘ |
| voyageType | transatlantic crossing ⓘ |
| voyageYear | 1970 ⓘ |
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: Ra II papyrus boat Description of subject: The Ra II papyrus boat is the reed vessel built and sailed by Norwegian explorer Thor Heyerdahl in 1970 to demonstrate the possibility of ancient transatlantic voyages using traditional materials and techniques.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Ra II papyrus boat