Danube Bridge of Trajan
E223917
The Danube Bridge of Trajan was an enormous early 2nd-century Roman engineering marvel that spanned the Danube River to support Emperor Trajan’s campaigns in Dacia.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Danube Bridge of Trajan canonical | 1 |
| Trajan's Bridge over the Danube | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1972996 — 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: Danube Bridge of Trajan Context triple: [Apollodorus of Damascus, notableWork, Danube Bridge of Trajan]
-
A.
Ponte Fabricio
Ponte Fabricio is the oldest surviving Roman bridge in Rome, Italy, connecting the city to Tiber Island across the Tiber River.
-
B.
Ponte Milvio
Ponte Milvio is an ancient Roman bridge in northern Rome, Italy, historically significant as the site of the Battle of the Milvian Bridge and now a popular pedestrian and cultural landmark.
-
C.
Ponte Cestio
Ponte Cestio is an ancient Roman stone bridge in Rome that connects Tiber Island to the Trastevere district across the Tiber River.
-
D.
Kandija Bridge
Kandija Bridge is a historic road bridge spanning the Krka River in Novo Mesto, Slovenia, known as one of the town’s characteristic architectural landmarks.
-
E.
Roman bridge of Trier
The Roman bridge of Trier is an ancient stone bridge over the Moselle River in Trier, Germany, renowned as one of the oldest standing Roman bridges north of the Alps and a key part of the city's UNESCO World Heritage.
- 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: Danube Bridge of Trajan Target entity description: The Danube Bridge of Trajan was an enormous early 2nd-century Roman engineering marvel that spanned the Danube River to support Emperor Trajan’s campaigns in Dacia.
-
A.
Tacitus Bridge
Tacitus Bridge is a major cable-stayed road bridge spanning the River Waal in the Netherlands, known for its distinctive twin pylons and role in regional traffic.
-
B.
Ponte Fabricio
Ponte Fabricio is the oldest surviving Roman bridge in Rome, Italy, connecting the city to Tiber Island across the Tiber River.
-
C.
Ponte Milvio
Ponte Milvio is an ancient Roman bridge in northern Rome, Italy, historically significant as the site of the Battle of the Milvian Bridge and now a popular pedestrian and cultural landmark.
-
D.
Ponte Cestio
Ponte Cestio is an ancient Roman stone bridge in Rome that connects Tiber Island to the Trastevere district across the Tiber River.
-
E.
Kandija Bridge
Kandija Bridge is a historic road bridge spanning the Krka River in Novo Mesto, Slovenia, known as one of the town’s characteristic architectural landmarks.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Roman bridge
ⓘ
arch bridge ⓘ historic structure ⓘ |
| alsoKnownAs | Trajan’s Bridge GENERATED ⓘ |
| architecturalFeature |
massive masonry piers
GENERATED
ⓘ
timber deck GENERATED ⓘ |
| associatedWithWar | Second Dacian War GENERATED ⓘ |
| builtBy | Roman military engineers GENERATED ⓘ |
| builtFor | Roman army GENERATED ⓘ |
| commissionedBy | Emperor Trajan GENERATED ⓘ |
| completedIn | AD 105 GENERATED ⓘ |
| connects |
Drobeta-Turnu Severin
GENERATED
ⓘ
Kladovo GENERATED ⓘ |
| considered | one of the longest arch bridges of antiquity GENERATED ⓘ |
| constructionEnd | AD 105 GENERATED ⓘ |
| constructionStart | AD 103 GENERATED ⓘ |
| country | Roman Empire ⓘ |
| crosses | Danube River GENERATED ⓘ |
| demolishedPartlyBy | Emperor Aurelian GENERATED ⓘ |
| demolitionApproxDate | late 3rd century AD GENERATED ⓘ |
| designedBy | Apollodorus of Damascus GENERATED ⓘ |
| engineeringSignificance | major feat of Roman engineering GENERATED ⓘ |
| function |
military supply route
GENERATED
ⓘ
permanent river crossing GENERATED ⓘ |
| hasNearbySite |
Roman castrum at Drobeta
GENERATED
ⓘ
Roman fortifications near Kladovo GENERATED ⓘ |
| heritageInterest | archaeological monument GENERATED ⓘ |
| historicalPeriod | early 2nd century AD GENERATED ⓘ |
| inscriptionLanguage | Latin GENERATED ⓘ |
| knownFrom |
ancient literary sources
GENERATED
ⓘ
inscriptions GENERATED ⓘ reliefs on Trajan’s Column GENERATED ⓘ |
| length | approximately 1135 meters GENERATED ⓘ |
| locatedInPresentDay |
Romania
GENERATED
ⓘ
Serbia GENERATED ⓘ |
| material |
stone piers
GENERATED
ⓘ
wooden superstructure GENERATED ⓘ |
| namedAfter | Trajan GENERATED ⓘ |
| numberOfArches | 20 GENERATED ⓘ |
| purpose | support Trajan’s Dacian campaigns GENERATED ⓘ |
| region |
Dacia
GENERATED
ⓘ
Moesia GENERATED ⓘ |
| remains | stone piers in the Danube GENERATED ⓘ |
| riverBankLocation |
left bank in Dacia
GENERATED
ⓘ
right bank in Moesia GENERATED ⓘ |
| status | ruined GENERATED ⓘ |
| strategicRole | facilitated Roman invasion of Dacia GENERATED ⓘ |
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: Danube Bridge of Trajan Description of subject: The Danube Bridge of Trajan was an enormous early 2nd-century Roman engineering marvel that spanned the Danube River to support Emperor Trajan’s campaigns in Dacia.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Trajan's Bridge over the Danube