Psammitēs
E620687
Psammitēs is the ancient Greek title of Archimedes’ treatise commonly known in English as "The Sand Reckoner," in which he develops a system for expressing extremely large numbers to estimate the quantity of sand that could fit in the universe.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Psammitēs canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6802146 — 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: Psammitēs Context triple: [The Sand Reckoner, alsoKnownAs, Psammitēs]
-
A.
Psamathe
Psamathe is a Nereid (sea nymph) in Greek mythology, known as a daughter of the sea god Nereus and the mother of the hero Phocus.
-
B.
Agiasos
Agiasos is a traditional mountain village on the Greek island of Lesbos, known for its preserved architecture, religious pilgrimage sites, and rich folk culture.
-
C.
Theosebia
Theosebia is a relatively obscure early Christian figure known primarily as a member of the family of Basil the Elder, associated with the influential Cappadocian Christian milieu.
-
D.
Hekademos
Hekademos (or Hecademus) was an Athenian hero or local figure whose grove outside Athens became the site of Plato’s Academy, giving the school its name.
-
E.
Πηνειός
Πηνειός is a major river in Thessaly, central Greece, known for flowing through the Vale of Tempe before emptying into the Aegean Sea.
- 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: Psammitēs Target entity description: Psammitēs is the ancient Greek title of Archimedes’ treatise commonly known in English as "The Sand Reckoner," in which he develops a system for expressing extremely large numbers to estimate the quantity of sand that could fit in the universe.
-
A.
Psamathe
Psamathe is a Nereid (sea nymph) in Greek mythology, known as a daughter of the sea god Nereus and the mother of the hero Phocus.
-
B.
Agiasos
Agiasos is a traditional mountain village on the Greek island of Lesbos, known for its preserved architecture, religious pilgrimage sites, and rich folk culture.
-
C.
Theosebia
Theosebia is a relatively obscure early Christian figure known primarily as a member of the family of Basil the Elder, associated with the influential Cappadocian Christian milieu.
-
D.
Hekademos
Hekademos (or Hecademus) was an Athenian hero or local figure whose grove outside Athens became the site of Plato’s Academy, giving the school its name.
-
E.
Πηνειός
Πηνειός is a major river in Thessaly, central Greece, known for flowing through the Vale of Tempe before emptying into the Aegean Sea.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
ancient Greek work
ⓘ
mathematical treatise ⓘ work by Archimedes ⓘ |
| addressedTo | a Hellenistic ruler named Gelon ⓘ |
| aimsToShow | that the number of grains of sand needed to fill the universe is finite and expressible ⓘ |
| alsoKnownAs |
Archimedes’ Sand Reckoner
ⓘ
linked to:
The Sand Reckoner
|
| associatedWith | Syracuse ⓘ |
| author | Archimedes ⓘ |
| contains |
estimates of the size of the Earth
ⓘ
estimates of the size of the Sun ⓘ estimates of the size of the universe ⓘ |
| dedicatesTo | King Gelon II of Syracuse ⓘ |
| demonstrates | use of a systematic notation for numbers far beyond everyday magnitudes ⓘ |
| develops | system for expressing very large integers ⓘ |
| explains | a method to name numbers up to 10^8 raised to the 10^8 power ⓘ |
| field |
astronomy
ⓘ
mathematics ⓘ |
| focusesOn |
estimation of the number of grains of sand in the universe
ⓘ
representation of extremely large numbers ⓘ |
| genre | mathematical astronomy ⓘ |
| hasForm | letter ⓘ |
| historicalSignificance | early explicit treatment of extremely large finite numbers ⓘ |
| influencedField |
history of mathematics
ⓘ
theory of large numbers ⓘ |
| language | Ancient Greek ⓘ |
| mainSubject |
astronomy
ⓘ
cosmology ⓘ large numbers ⓘ number notation ⓘ |
| period | Hellenistic period ⓘ |
| preservedIn | medieval manuscript tradition ⓘ |
| relatedWork |
Measurement of a Circle
ⓘ
linked to:
On the Measurement of the Circle
On the Sphere and Cylinder ⓘ |
| studiedIn |
classics
ⓘ
history of science ⓘ philosophy of mathematics ⓘ |
| timeOfComposition | 3rd century BCE ⓘ |
| titleInGreek | Ψαμμίτης ⓘ |
| translatedTitle | The Sand Reckoner ⓘ |
| uses |
place-value style number system
ⓘ
powers of 10^8 ⓘ |
| workOf |
Archimedes of Syracuse
ⓘ
linked to:
Archimedes
|
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: Psammitēs Description of subject: Psammitēs is the ancient Greek title of Archimedes’ treatise commonly known in English as "The Sand Reckoner," in which he develops a system for expressing extremely large numbers to estimate the quantity of sand that could fit in the universe.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.