Edict of Thessalonica
E107154
The Edict of Thessalonica was a 380 CE decree by Emperor Theodosius I that made Nicene Christianity the official state religion of the Roman Empire, decisively shaping its religious landscape.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Edict of Thessalonica canonical | 4 |
| Decree of Thessalonica | 1 |
| Edicts supporting Nicene Christianity | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T897101 — 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: Edict of Thessalonica Context triple: [Christianization of the Roman Empire, significantEvent, Edict of Thessalonica]
-
A.
Edict of Milan
The Edict of Milan was a 313 CE proclamation by the Roman emperors Constantine and Licinius that granted religious tolerance throughout the empire and effectively legalized Christianity.
-
B.
Mark of Ephesus
Mark of Ephesus was a 15th-century Eastern Orthodox bishop and theologian best known for his staunch opposition to the union with the Roman Catholic Church.
-
C.
Edict of Toleration by Galerius
The Edict of Toleration by Galerius was a 311 CE imperial decree that officially ended the Roman Empire’s persecution of Christians and granted them legal permission to practice their faith.
-
D.
Theodosian Code
The Theodosian Code was a 5th-century compilation of Roman imperial laws commissioned by Emperor Theodosius II that systematized legislation from Constantine onward and became a foundational source for later European legal traditions.
-
E.
Second Council of Ephesus
The Second Council of Ephesus was a controversial 449 church synod later condemned as the “Robber Council” for overturning earlier Christological decisions and prompting the more definitive Council of Chalcedon.
- 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: Edict of Thessalonica Target entity description: The Edict of Thessalonica was a 380 CE decree by Emperor Theodosius I that made Nicene Christianity the official state religion of the Roman Empire, decisively shaping its religious landscape.
-
A.
Edict of Milan
The Edict of Milan was a 313 CE proclamation by the Roman emperors Constantine and Licinius that granted religious tolerance throughout the empire and effectively legalized Christianity.
-
B.
Mark of Ephesus
Mark of Ephesus was a 15th-century Eastern Orthodox bishop and theologian best known for his staunch opposition to the union with the Roman Catholic Church.
-
C.
Edict of Toleration by Galerius
The Edict of Toleration by Galerius was a 311 CE imperial decree that officially ended the Roman Empire’s persecution of Christians and granted them legal permission to practice their faith.
-
D.
Theodosian Code
The Theodosian Code was a 5th-century compilation of Roman imperial laws commissioned by Emperor Theodosius II that systematized legislation from Constantine onward and became a foundational source for later European legal traditions.
-
E.
Second Council of Ephesus
The Second Council of Ephesus was a controversial 449 church synod later condemned as the “Robber Council” for overturning earlier Christological decisions and prompting the more definitive Council of Chalcedon.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
Roman law
ⓘ
imperial edict ⓘ late antique legal text ⓘ |
| alsoKnownAs |
Cunctos populos edict
ⓘ
Edict of Thessalonica ⓘ
surface form:
Decree of Thessalonica
|
| appliesTo |
Roman Empire
ⓘ
Roman citizens ⓘ |
| category |
380 in law
ⓘ
late Roman Christianity ⓘ
surface form:
Christianity in the Roman Empire
Roman imperial decrees ⓘ Theodosius I ⓘ |
| condemned |
Arianism
ⓘ
non‑Trinitarian Christian doctrines ⓘ |
| date |
27 February 380
ⓘ
380 ⓘ |
| declaredOfficialReligion |
Nicene Christianity
ⓘ
Nicene Christianity ⓘ
surface form:
Trinitarian Christianity
|
| definedOrthodoxyByReferenceTo | faith of the bishops of Rome and Alexandria ⓘ |
| emperorTitleHolder |
Gratian
ⓘ
Theodosius I ⓘ Valentinian II ⓘ |
| historicalContext | Christianization of the Roman Empire ⓘ |
| historicalPeriod | Late Antiquity ⓘ |
| influenced |
First Council of Constantinople
ⓘ
imperial religious legislation ⓘ status of pagan cults in the Roman Empire ⓘ subsequent anti‑heretical laws ⓘ |
| issuedBy |
Gratian
ⓘ
Theodosius I ⓘ Valentinian II ⓘ |
| language | Latin ⓘ |
| legalCollection |
Codex Theodosianus
ⓘ
Codex Theodosianus 16.1.2 ⓘ |
| legalEffect |
established a single orthodox Christian faith for the empire
ⓘ
made Nicene Christianity the official state religion of the Roman Empire ⓘ |
| officialName | Cunctos populos ⓘ |
| placeOfIssue |
Salonika
ⓘ
surface form:
Thessalonica
|
| precedes | First Council of Constantinople ⓘ |
| prescribedPenalty |
exclusion from the name of Catholic Christians
ⓘ
loss of legal status for heretical groups ⓘ |
| prescribedStatusForDissenters | heretics ⓘ |
| recognizedAsOrthodox |
faith of Peter of Alexandria
ⓘ
faith of Pope Damasus I of Rome ⓘ |
| relatedTo |
First Council of Nicaea
ⓘ
surface form:
Council of Nicaea
Nicene Creed ⓘ |
| religiousOrientation |
Nicene
ⓘ
Trinitarian ⓘ |
| subject |
Christianity
ⓘ
Roman state religion ⓘ religious policy ⓘ |
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: Edict of Thessalonica Description of subject: The Edict of Thessalonica was a 380 CE decree by Emperor Theodosius I that made Nicene Christianity the official state religion of the Roman Empire, decisively shaping its religious landscape.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Decree of Thessalonica
this entity surface form:
Edicts supporting Nicene Christianity