Cloaca Maxima
E135276
The Cloaca Maxima was one of ancient Rome’s earliest and largest sewage systems, an engineering marvel that helped drain the city’s low-lying areas and manage wastewater.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Cloaca Maxima canonical | 2 |
| Cloaca Maxima (traditional attribution) | 1 |
| Cloaca Maxima outlet area | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1183565 — 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: Cloaca Maxima Context triple: [Roman Forum, drainedBy, Cloaca Maxima]
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A.
Aqua Virgo aqueduct
The Aqua Virgo aqueduct is an ancient Roman waterway, completed in 19 BCE under Augustus, that has long supplied water to central Rome, including the Trevi Fountain.
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B.
Aqua Paola aqueduct
The Aqua Paola aqueduct is a 17th-century Roman aqueduct and monumental fountain system that restored an ancient water supply to the city, culminating in the grand Fontana dell’Acqua Paola on the Janiculum Hill.
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C.
New Croton Aqueduct
The New Croton Aqueduct is a major underground water tunnel that conveys drinking water from the Croton Reservoir system in upstate New York to New York City.
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D.
Marciana
Marciana is a historic hilltop village on the Italian island of Elba, known for its medieval architecture and scenic views over the Tyrrhenian Sea.
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E.
Herodian street and drainage system
The Herodian street and drainage system was an extensive Second Temple period urban infrastructure project in Jerusalem, featuring a monumental paved street with an underlying sewer channel that managed runoff and waste through the Tyropoeon Valley.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: Cloaca Maxima Target entity description: The Cloaca Maxima was one of ancient Rome’s earliest and largest sewage systems, an engineering marvel that helped drain the city’s low-lying areas and manage wastewater.
-
A.
Aqua Virgo aqueduct
The Aqua Virgo aqueduct is an ancient Roman waterway, completed in 19 BCE under Augustus, that has long supplied water to central Rome, including the Trevi Fountain.
-
B.
Aqua Paola aqueduct
The Aqua Paola aqueduct is a 17th-century Roman aqueduct and monumental fountain system that restored an ancient water supply to the city, culminating in the grand Fontana dell’Acqua Paola on the Janiculum Hill.
-
C.
New Croton Aqueduct
The New Croton Aqueduct is a major underground water tunnel that conveys drinking water from the Croton Reservoir system in upstate New York to New York City.
-
D.
Marciana
Marciana is a historic hilltop village on the Italian island of Elba, known for its medieval architecture and scenic views over the Tyrrhenian Sea.
-
E.
Herodian street and drainage system
The Herodian street and drainage system was an extensive Second Temple period urban infrastructure project in Jerusalem, featuring a monumental paved street with an underlying sewer channel that managed runoff and waste through the Tyropoeon Valley.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
ancient Roman sewer
ⓘ
drainage system ⓘ engineering structure ⓘ |
| architecturalStyle |
Roman architecture
ⓘ
surface form:
Roman engineering
|
| associatedWithDeity |
Venus Cloacina
ⓘ
surface form:
Cloacina
|
| connectedTo |
Roman Forum
ⓘ
Tiber embankment ⓘ Velabrum ⓘ |
| coordinateLocation | Rome city center ⓘ |
| country | Italy ⓘ |
| culturalSignificance |
example of early urban sanitation
ⓘ
symbol of Roman engineering skill ⓘ |
| drainsInto |
Tiber
ⓘ
surface form:
Tiber River
|
| era |
Roman Kingdom
ⓘ
Roman Republic ⓘ |
| function |
drainage of low-lying areas
ⓘ
flood control ⓘ sewage disposal ⓘ |
| hasEngineeringFeature |
barrel vaults
ⓘ
gravity-fed drainage ⓘ stone lining ⓘ |
| hasType |
covered sewer
ⓘ
main outfall sewer ⓘ |
| heritageStatus | archaeological site ⓘ |
| inception | 6th century BC ⓘ |
| influenced | later urban sanitation systems ⓘ |
| languageOfName | Latin ⓘ |
| locatedIn |
Italy
ⓘ
Rome ⓘ Roman Antiquity ⓘ
surface form:
ancient Rome
|
| maintainedDuring |
Roman Empire
ⓘ
Roman Republic ⓘ |
| materialUsed |
concrete
ⓘ
stone ⓘ |
| meaningOfName | greatest sewer ⓘ |
| notableFor |
being one of the earliest sewage systems in the world
ⓘ
large scale civil engineering ⓘ longevity of use ⓘ |
| originallyBuiltUnder |
Lucius Tarquinius Priscus
ⓘ
surface form:
Tarquinius Priscus
Lucius Tarquinius Superbus ⓘ
surface form:
Tarquinius Superbus
|
| originalPurpose |
drainage of the Roman Forum marshes
ⓘ
drainage of the Velabrum ⓘ |
| partOf |
Roman sewer network
ⓘ
infrastructure of ancient Rome ⓘ |
| startDate | 6th century BC ⓘ |
| stillExists | true ⓘ |
| touristAttraction | true ⓘ |
| usedBy | inhabitants of ancient Rome ⓘ |
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: Cloaca Maxima Description of subject: The Cloaca Maxima was one of ancient Rome’s earliest and largest sewage systems, an engineering marvel that helped drain the city’s low-lying areas and manage wastewater.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.