Ibn Sahl
E1023556
Ibn Sahl was a 10th-century Persian mathematician and physicist renowned for formulating the law of refraction centuries before Snell, making him a foundational figure in the development of optical science in the Islamic Golden Age.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Ibn Sahl canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T13132138 — 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: Ibn Sahl Context triple: [Islamic optics, majorFigure, Ibn Sahl]
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A.
Ibn al-Haytham (Alhazen)
Ibn al-Haytham (Alhazen) was an influential medieval polymath best known for his foundational work in optics, mathematics, and scientific methodology, which earned him recognition as a pioneer of the modern scientific method.
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B.
Imru' al-Qais al-Kindi
Imru' al-Qais al-Kindi was a pre-Islamic Arab poet and prince, renowned as one of the greatest authors of the Mu'allaqat and a foundational figure in classical Arabic poetry.
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C.
Ibn al-Jazzar
Ibn al-Jazzar was a 10th-century Tunisian physician and medical writer renowned for his influential works on practical medicine, pediatrics, and travel health that shaped Islamic and later European medical traditions.
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D.
Al-Samaw'al
Al-Samaw'al was a 12th-century Muslim mathematician best known for his early work on algebraic symbolism and the systematic use of negative numbers.
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E.
al-Hasan ibn Sahl
al-Hasan ibn Sahl was an influential Abbasid statesman and governor who played a prominent political and administrative role during the civil war between al-Amin and al-Ma'mun.
- 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: Ibn Sahl Target entity description: Ibn Sahl was a 10th-century Persian mathematician and physicist renowned for formulating the law of refraction centuries before Snell, making him a foundational figure in the development of optical science in the Islamic Golden Age.
-
A.
Ibn al-Haytham (Alhazen)
Ibn al-Haytham (Alhazen) was an influential medieval polymath best known for his foundational work in optics, mathematics, and scientific methodology, which earned him recognition as a pioneer of the modern scientific method.
-
B.
Imru' al-Qais al-Kindi
Imru' al-Qais al-Kindi was a pre-Islamic Arab poet and prince, renowned as one of the greatest authors of the Mu'allaqat and a foundational figure in classical Arabic poetry.
-
C.
Ibn al-Jazzar
Ibn al-Jazzar was a 10th-century Tunisian physician and medical writer renowned for his influential works on practical medicine, pediatrics, and travel health that shaped Islamic and later European medical traditions.
-
D.
Al-Samaw'al
Al-Samaw'al was a 12th-century Muslim mathematician best known for his early work on algebraic symbolism and the systematic use of negative numbers.
-
E.
al-Hasan ibn Sahl
al-Hasan ibn Sahl was an influential Abbasid statesman and governor who played a prominent political and administrative role during the civil war between al-Amin and al-Ma'mun.
- F. None of above. chosen
Statements (26)
| Predicate | Object |
|---|---|
| instanceOf |
Islamic Golden Age scholar
ⓘ
mathematician ⓘ optics researcher ⓘ person ⓘ physicist ⓘ |
| centuryActive | 10th century ⓘ |
| countryOfCulture | Persia ⓘ |
| era | Islamic Golden Age ⓘ |
| ethnicity | Persian ⓘ |
| fieldOfWork |
mathematics
ⓘ
optics ⓘ physics ⓘ |
| historicalSignificance |
key figure in early Islamic mathematical physics
ⓘ
pioneer of mathematical treatment of refraction ⓘ |
| influenced |
development of geometrical optics
ⓘ
later European optical science ⓘ |
| knownFor | earliest known correct statement of the law of refraction ⓘ |
| name | Ibn Sahl ⓘ |
| notableFor |
formulating the law of refraction before Snell
ⓘ
foundational contributions to optical science ⓘ |
| preceded |
René Descartes in the formulation of refraction law
ⓘ
Willebrord Snellius ⓘ |
| regionOfActivity | Islamic world ⓘ |
| scientificDiscipline | classical optics ⓘ |
| workFocus |
design of burning mirrors and lenses
ⓘ
refraction of light ⓘ |
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: Ibn Sahl Description of subject: Ibn Sahl was a 10th-century Persian mathematician and physicist renowned for formulating the law of refraction centuries before Snell, making him a foundational figure in the development of optical science in the Islamic Golden Age.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.