Edict of Thessalonica

E107154

Roman law imperial edict late antique legal text

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.

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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 ⓘ Decree of Thessalonica ⓘ linked to: Edict of Thessalonica
appliesTo	Roman Empire ⓘ Roman citizens ⓘ
category	380 in law ⓘ Christianity in the Roman Empire ⓘ linked to: late Roman Christianity Roman imperial decrees ⓘ Theodosius I ⓘ
condemned	Arianism ⓘ non‑Trinitarian Christian doctrines ⓘ
date	27 February 380 ⓘ 380 ⓘ
declaredOfficialReligion	Nicene Christianity ⓘ Trinitarian Christianity ⓘ linked to: Nicene 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	Thessalonica ⓘ linked to: Salonika
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	Council of Nicaea ⓘ linked to: First Council of Nicaea Nicene Creed ⓘ
religiousOrientation	Nicene ⓘ Trinitarian ⓘ
subject	Christianity ⓘ Roman state religion ⓘ religious policy ⓘ

How these facts were elicited

Referenced by (6)

Full triples — surface form annotated when it differs from this entity's canonical label.

Christianization of the Roman Empire → significantEvent → Edict of Thessalonica ⓘ

Theodosius I → notableWork → Edict of Thessalonica ⓘ

Theodosius I → issued → Edict of Thessalonica ⓘ

Edict of Thessalonica → alsoKnownAs → Decree of Thessalonica ⓘ

linked to: Edict of Thessalonica

Church of the Roman Empire → imperialLaw → Edict of Thessalonica ⓘ

Valentinian II → notableWork → Edicts supporting Nicene Christianity ⓘ