Psammites
E627476
Psammites is an ancient mathematical treatise by Archimedes in which he develops a system for expressing extremely large numbers to estimate the quantity of sand grains that could fit in the universe.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Psammites canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T6802145 — 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: Psammites Context triple: [The Sand Reckoner, alsoKnownAs, Psammites]
-
A.
Psamtik I
Psamtik I was a 7th-century BCE pharaoh who reunified Egypt and founded the Saite (26th) Dynasty, ushering in a period of political stability and cultural revival.
-
B.
Psamtik II
Psamtik II was a pharaoh of Egypt’s 26th Dynasty known for his military campaigns, especially against Nubia, and for consolidating Saite power.
-
C.
Amyrtaeus
Amyrtaeus was a 4th-century BCE Egyptian pharaoh who led a successful revolt against Persian rule and briefly restored native independence during Egypt’s Late Period.
-
D.
Psamtik III
Psamtik III was the last pharaoh of Egypt’s 26th Dynasty, whose brief reign ended with the Persian conquest under Cambyses II.
-
E.
Siptah
Siptah was a late 19th Dynasty pharaoh of ancient Egypt who ruled briefly during a turbulent period marked by political instability and power struggles.
- 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: Psammites Target entity description: Psammites is an ancient mathematical treatise by Archimedes in which he develops a system for expressing extremely large numbers to estimate the quantity of sand grains that could fit in the universe.
-
A.
Psamtik I
Psamtik I was a 7th-century BCE pharaoh who reunified Egypt and founded the Saite (26th) Dynasty, ushering in a period of political stability and cultural revival.
-
B.
Psamtik II
Psamtik II was a pharaoh of Egypt’s 26th Dynasty known for his military campaigns, especially against Nubia, and for consolidating Saite power.
-
C.
Amyrtaeus
Amyrtaeus was a 4th-century BCE Egyptian pharaoh who led a successful revolt against Persian rule and briefly restored native independence during Egypt’s Late Period.
-
D.
Psamtik III
Psamtik III was the last pharaoh of Egypt’s 26th Dynasty, whose brief reign ended with the Persian conquest under Cambyses II.
-
E.
Siptah
Siptah was a late 19th Dynasty pharaoh of ancient Egypt who ruled briefly during a turbulent period marked by political instability and power struggles.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
mathematical treatise
ⓘ
work by Archimedes ⓘ |
| addressedTo | a ruler of Syracuse ⓘ |
| aimsToShow | the power of mathematical reasoning to handle enormous quantities ⓘ |
| approximateDate | 3rd century BCE ⓘ |
| assumes |
the Sun is much larger than the Earth
ⓘ
the fixed stars lie on a sphere surrounding the Sun-centered system ⓘ |
| author | Archimedes ⓘ |
| contains | early use of a positional-like number system ⓘ |
| culturalContext | ancient Greek mathematics ⓘ |
| dedicatedTo | King Gelon II of Syracuse ⓘ |
| demonstrates |
that numbers larger than any previously named Greek numbers can be systematically expressed
ⓘ
that the number of grains of sand needed to fill the universe is finite ⓘ |
| develops | a system for expressing extremely large numbers ⓘ |
| field |
astronomy
ⓘ
mathematics ⓘ number theory ⓘ |
| focusesOn | arithmetical reasoning rather than geometric diagrams ⓘ |
| genre | scientific prose ⓘ |
| goal | to estimate the number of grains of sand that could fit in the universe ⓘ |
| hasAlternativeName |
The Sand Reckoner of Archimedes
ⓘ
linked to:
The Sand Reckoner
|
| hasEnglishTitle | The Sand Reckoner ⓘ |
| hasForm | letter-treatise ⓘ |
| hasGreekTitle | Ψαμμίτης ⓘ |
| hasLatinTitle | Psammites ⓘ |
| historicalPeriod | Hellenistic period ⓘ |
| influenced | later studies of large numbers ⓘ |
| introduces |
a method to name numbers far larger than those used in everyday Greek notation
ⓘ
a system of orders of magnitude up to 10^8 per order ⓘ |
| mainSubject |
astronomical estimation
ⓘ
number notation ⓘ very large numbers ⓘ |
| modernTitle | The Sand Reckoner ⓘ |
| placeOfOrigin | Syracuse ⓘ |
| preservedIn | medieval manuscript tradition ⓘ |
| relatedWork |
Measurement of a Circle
ⓘ
linked to:
On the Measurement of the Circle
On the Sphere and Cylinder ⓘ |
| topic |
orbital periods of celestial bodies
ⓘ
size of the Earth ⓘ size of the Moon ⓘ size of the Sun ⓘ size of the universe ⓘ |
| usesAssumptionFrom | astronomical model of Aristarchus of Samos ⓘ |
| usesConcept |
orders and periods of numbers
ⓘ
powers of ten ⓘ |
| writtenInLanguage | Ancient Greek ⓘ |
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: Psammites Description of subject: Psammites is an ancient mathematical treatise by Archimedes in which he develops a system for expressing extremely large numbers to estimate the quantity of sand grains that could fit in the universe.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.