Claudius Ptolemaeus
E40246
Claudius Ptolemaeus, commonly known as Ptolemy, was a Greco-Roman mathematician, astronomer, and geographer whose geocentric model of the universe and influential works like the Almagest shaped scientific thought for over a millennium.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Ptolemy | 42 |
| Claudius Ptolemy | 12 |
| Claudius Ptolemaeus canonical | 4 |
| Ptolemy (geographer) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T310308 — 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.
Target entity: Claudius Ptolemaeus Context triple: [Claudius, wasBorneBy, Claudius Ptolemaeus]
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A.
Hipparchus of Athens
Hipparchus of Athens was a 6th-century BCE Athenian tyrant of the Peisistratid family, known as a patron of the arts and for his assassination, which became a celebrated event in Athenian democratic lore.
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B.
Alexander of Alexandria
Alexander of Alexandria was a 4th-century Patriarch of Alexandria best known for his staunch defense of Nicene orthodoxy and his early opposition to the teachings of Arius.
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C.
Dorotheus
Dorotheus was a 6th-century Byzantine jurist who helped systematize and codify Roman law under Emperor Justinian I.
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D.
Archimedes
Archimedes was an ancient Greek mathematician, physicist, and engineer renowned for foundational contributions to geometry, hydrostatics, and mechanics that shaped later scientific thought.
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E.
Johannes Kepler
Johannes Kepler was a pioneering 17th-century German astronomer and mathematician best known for formulating the three laws of planetary motion that laid crucial groundwork for classical mechanics.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: Claudius Ptolemaeus Target entity description: Claudius Ptolemaeus, commonly known as Ptolemy, was a Greco-Roman mathematician, astronomer, and geographer whose geocentric model of the universe and influential works like the Almagest shaped scientific thought for over a millennium.
-
A.
Hipparchus of Athens
Hipparchus of Athens was a 6th-century BCE Athenian tyrant of the Peisistratid family, known as a patron of the arts and for his assassination, which became a celebrated event in Athenian democratic lore.
-
B.
Alexander of Alexandria
Alexander of Alexandria was a 4th-century Patriarch of Alexandria best known for his staunch defense of Nicene orthodoxy and his early opposition to the teachings of Arius.
-
C.
Dorotheus
Dorotheus was a 6th-century Byzantine jurist who helped systematize and codify Roman law under Emperor Justinian I.
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D.
Archimedes
Archimedes was an ancient Greek mathematician, physicist, and engineer renowned for foundational contributions to geometry, hydrostatics, and mechanics that shaped later scientific thought.
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E.
Johannes Kepler
Johannes Kepler was a pioneering 17th-century German astronomer and mathematician best known for formulating the three laws of planetary motion that laid crucial groundwork for classical mechanics.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
Greco-Roman scholar
ⓘ
astrologer ⓘ astronomer ⓘ geographer ⓘ human ⓘ mathematician ⓘ |
| activeIn | Alexandria ⓘ |
| alsoKnownAs |
Ptolemaios
ⓘ
Claudius Ptolemaeus ⓘ
surface form:
Ptolemy
Ptolemaios ⓘ
surface form:
Κλαύδιος Πτολεμαῖος
|
| birthPlace |
Alexandria
ⓘ
Byzantine Egypt ⓘ
surface form:
Roman Egypt
|
| catalogued | over 1,000 fixed stars ⓘ |
| citizenship | Roman Empire ⓘ |
| compiled | star catalogue in the Almagest ⓘ |
| contributedTo | trigonometry ⓘ |
| developed | geocentric model of the universe ⓘ |
| era |
Roman Antiquity
ⓘ
surface form:
Roman Imperial period
|
| ethnicGroup | Greek ⓘ |
| fieldOfWork |
astrology
ⓘ
astronomy ⓘ geography ⓘ mathematics ⓘ music theory ⓘ optics ⓘ |
| floruit |
2nd century
ⓘ
c. 100–170 CE ⓘ |
| influenced |
Nicolaus Copernicus
ⓘ
surface form:
Claudius Copernicus
European Renaissance astronomy ⓘ Islamic astronomy ⓘ geography in the Middle Ages ⓘ medieval astronomy ⓘ |
| influencedBy | Hipparchus ⓘ |
| introduced | equant in planetary theory ⓘ |
| languageOfWorkOrName | Ancient Greek ⓘ |
| name | Claudius Ptolemaeus self-link ⓘ |
| notableWork |
Almagest
ⓘ
Geographia ⓘ Harmonics ⓘ Mathematike Syntaxis ⓘ Optics ⓘ Planetary Hypotheses ⓘ Almagest ⓘ
surface form:
Tetrabiblos
|
| proposed | Earth-centered cosmology ⓘ |
| systematized |
ancient Greek astronomy
ⓘ
ancient geographic knowledge ⓘ |
| used |
chord tables
ⓘ
deferents in planetary theory ⓘ eccentrics in planetary theory ⓘ epicycles in planetary theory ⓘ |
| workPeriod | c. 127–151 CE ⓘ |
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.
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.
Subject: Claudius Ptolemaeus Description of subject: Claudius Ptolemaeus, commonly known as Ptolemy, was a Greco-Roman mathematician, astronomer, and geographer whose geocentric model of the universe and influential works like the Almagest shaped scientific thought for over a millennium.
Referenced by (59)
Full triples — surface form annotated when it differs from this entity's canonical label.