Protagoras
E88225
Protagoras was a pre-Socratic Greek sophist and philosopher best known for his relativistic claim that "man is the measure of all things."
All labels observed (2)
| Label | Occurrences |
|---|---|
| Protagoras canonical | 28 |
| Πρωταγόρας | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T606555 — 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: Protagoras Context triple: [Classical Greek philosophy, hasKeyFigure, Protagoras]
-
A.
Antisthenes
Antisthenes was an ancient Greek philosopher, a pupil of Socrates and a key forerunner of Cynicism known for his advocacy of virtue, self-sufficiency, and ascetic living.
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B.
Gorgias
Gorgias is a Socratic dialogue by Plato that examines the nature of rhetoric, justice, and the good life through a debate between Socrates and the sophist Gorgias.
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C.
Gorgias
Gorgias was a pre-Socratic Greek sophist and rhetorician renowned for his skillful, ornamental style of speech and his skeptical, paradoxical philosophical arguments.
-
D.
Anaxagoras
Anaxagoras was a pre-Socratic Greek philosopher known for introducing the concept of Nous (Mind) as the cosmic ordering principle and for offering naturalistic explanations of celestial and physical phenomena.
-
E.
Socrates
Socrates was a classical Athenian philosopher renowned as a founder of Western philosophy, known for his method of questioning and his trial and execution in Athens.
- 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: Protagoras Target entity description: Protagoras was a pre-Socratic Greek sophist and philosopher best known for his relativistic claim that "man is the measure of all things."
-
A.
Antisthenes
Antisthenes was an ancient Greek philosopher, a pupil of Socrates and a key forerunner of Cynicism known for his advocacy of virtue, self-sufficiency, and ascetic living.
-
B.
Gorgias
Gorgias was a pre-Socratic Greek sophist and rhetorician renowned for his skillful, ornamental style of speech and his skeptical, paradoxical philosophical arguments.
-
C.
Gorgias
Gorgias is a Socratic dialogue by Plato that examines the nature of rhetoric, justice, and the good life through a debate between Socrates and the sophist Gorgias.
-
D.
Anaxagoras
Anaxagoras was a pre-Socratic Greek philosopher known for introducing the concept of Nous (Mind) as the cosmic ordering principle and for offering naturalistic explanations of celestial and physical phenomena.
-
E.
Socrates
Socrates was a classical Athenian philosopher renowned as a founder of Western philosophy, known for his method of questioning and his trial and execution in Athens.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
ancient Greek philosopher
ⓘ
human ⓘ pre-Socratic philosopher ⓘ rhetorician ⓘ sophist ⓘ |
| associatedWith |
Abdera
ⓘ
Athens ⓘ |
| birthPlace |
Abdera
ⓘ
Ancient Greece ⓘ
linked to:
Greek Antiquity
Thrace ⓘ |
| culturalContext | Classical Athens ⓘ |
| era |
Classical Greek philosophy
ⓘ
Pre-Socratic philosophy ⓘ |
| floruit | 5th century BCE ⓘ |
| gender | male ⓘ |
| influenced |
Gorgias
ⓘ
Hippias ⓘ
linked to:
Hippias of Elis
Plato ⓘ Prodicus ⓘ relativist traditions in philosophy ⓘ |
| influencedBy |
Greek rhetorical practice
ⓘ
pre-Socratic philosophy ⓘ |
| knownFor |
agnosticism about the gods
ⓘ
relativism ⓘ sophistry ⓘ teaching rhetoric for pay ⓘ |
| language | Ancient Greek ⓘ |
| legacy |
early proponent of relativism in Western philosophy
ⓘ
foundational figure of sophism ⓘ |
| name | Protagoras ⓘ |
| nationality | Greek ⓘ |
| notableIdea |
"Man is the measure of all things"
ⓘ
arguments can be made stronger or weaker by technique ⓘ truth is relative to the perceiver ⓘ |
| occupation |
philosopher
ⓘ
sophist ⓘ teacher of rhetoric ⓘ |
| philosophicalSchool |
Sophism
ⓘ
linked to:
Sophists
|
| regionOfActivity |
Ancient Greece
ⓘ
linked to:
Greek Antiquity
Athens ⓘ |
| studentOf | no widely attested specific teacher ⓘ |
| subjectOf |
Plato's dialogue "Protagoras"
ⓘ
references in Diogenes Laërtius ⓘ references in Plato's "Theaetetus" ⓘ |
| taught |
rhetoric to Athenian citizens
ⓘ
virtue as a teachable skill ⓘ |
| timePeriod | circa 5th century BCE ⓘ |
| viewOnEthics | ethical relativism ⓘ |
| viewOnKnowledge | epistemic relativism ⓘ |
| viewOnReligion | agnostic about the existence of the gods ⓘ |
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: Protagoras Description of subject: Protagoras was a pre-Socratic Greek sophist and philosopher best known for his relativistic claim that "man is the measure of all things."
Referenced by (32)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
"Euthydemus" by Plato
linked to: Protagoras
linked to: Protagoras
subject linked to:
Plato's dialogue "Protagoras"
linked to: Protagoras
linked to: Protagoras