Constantinian period

E621483

historical period period of the Roman Empire

The Constantinian period refers to the early 4th-century phase of the Roman Empire marked by Emperor Constantine the Great’s reign, the consolidation of imperial power, and the legalization and promotion of Christianity.

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All labels observed (6)

Label	Occurrences
Constantinian era	5
Constantinian period canonical	2
Constantinian shift	1
Late Roman Empire	1
Roman Imperial period	1
Tetrarchic and Constantinian era	1

How this entity was disambiguated

This entity first appeared as the object of triple T6815388 — 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: Constantinian period
Context triple: [Thermae of Constantine, era, Constantinian period]

A. Herodian period
The Herodian period was the era of King Herod the Great’s rule over Judea, marked by extensive building projects, political maneuvering under Roman oversight, and significant transformation of Jerusalem’s urban and religious landscape.
B. Late Antiquity
Late Antiquity was the transitional historical period from roughly the 3rd to the 8th century CE, marking the transformation of the Roman world into medieval Europe and the early Byzantine and Islamic civilizations.
C. Valentinianic dynasty
The Valentinianic dynasty was a late Roman imperial family that ruled parts of the Roman Empire in the 4th century AD, beginning with Emperor Valentinian I and including his successors in both the Western and Eastern Empires.
D. Diocletian's Tetrarchy
Diocletian's Tetrarchy was a late 3rd-century system of rule that divided imperial authority among four co-emperors to stabilize and more effectively govern the Roman Empire.
E. Crisis of the Third Century
The Crisis of the Third Century was a period of severe political instability, military upheaval, economic collapse, and external invasion that nearly caused the disintegration of the Roman Empire between roughly 235 and 284 CE.
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: Constantinian period
Target entity description: The Constantinian period refers to the early 4th-century phase of the Roman Empire marked by Emperor Constantine the Great’s reign, the consolidation of imperial power, and the legalization and promotion of Christianity.

A. Herodian period
The Herodian period was the era of King Herod the Great’s rule over Judea, marked by extensive building projects, political maneuvering under Roman oversight, and significant transformation of Jerusalem’s urban and religious landscape.
B. Late Antiquity
Late Antiquity was the transitional historical period from roughly the 3rd to the 8th century CE, marking the transformation of the Roman world into medieval Europe and the early Byzantine and Islamic civilizations.
C. Valentinianic dynasty
The Valentinianic dynasty was a late Roman imperial family that ruled parts of the Roman Empire in the 4th century AD, beginning with Emperor Valentinian I and including his successors in both the Western and Eastern Empires.
D. Diocletian's Tetrarchy
Diocletian's Tetrarchy was a late 3rd-century system of rule that divided imperial authority among four co-emperors to stabilize and more effectively govern the Roman Empire.
E. Crisis of the Third Century
The Crisis of the Third Century was a period of severe political instability, military upheaval, economic collapse, and external invasion that nearly caused the disintegration of the Roman Empire between roughly 235 and 284 CE.
F. None of above. chosen

Statements (52)

Predicate	Object
instanceOf	historical period ⓘ period of the Roman Empire ⓘ
appliesToJurisdiction	Roman Empire NERFINISHED ⓘ
country	Roman Empire ⓘ
fieldOfWork	Roman imperial history ⓘ
followedBy	Constantinian dynasty NERFINISHED ⓘ Valentinianic-Theodosian period NERFINISHED ⓘ
follows	Crisis of the Third Century NERFINISHED ⓘ Tetrarchic period ⓘ
hasCapital	Constantinople NERFINISHED ⓘ Rome NERFINISHED ⓘ
hasCharacteristic	consolidation of imperial power under a single emperor ⓘ continued use of tetrarchic administrative structures ⓘ foundation of a new imperial capital at Constantinople ⓘ gradual marginalization of some traditional Roman cults ⓘ imperial involvement in Church councils ⓘ imperial patronage of the bishop of Rome ⓘ imperial promotion of Christianity ⓘ increased use of Christian symbols in imperial iconography ⓘ increasing Christian influence in imperial administration ⓘ legalization of Christianity ⓘ legislation favoring the Christian clergy ⓘ monumental Christian church building ⓘ shift of imperial focus to the Eastern provinces ⓘ transition from persecution of Christians to toleration ⓘ
hasEndTime	337 ⓘ mid 4th century ⓘ
hasKeyEvent	Battle of the Milvian Bridge NERFINISHED ⓘ Christianization of the imperial court ⓘ Council of Nicaea NERFINISHED ⓘ Edict of Milan NERFINISHED ⓘ confiscation of some pagan temple treasures ⓘ conversion of Constantine to Christianity ⓘ defeat of Licinius NERFINISHED ⓘ foundation of Constantinople ⓘ imperial patronage of the Church ⓘ
hasKeyFigure	Constans I NERFINISHED ⓘ Constantine II NERFINISHED ⓘ Constantine the Great NERFINISHED ⓘ Constantius II NERFINISHED ⓘ Crispus NERFINISHED ⓘ Helena NERFINISHED ⓘ Licinius NERFINISHED ⓘ
hasLanguage	Greek ⓘ Latin ⓘ
hasReligion	Christianity ⓘ Roman paganism NERFINISHED ⓘ
hasStartTime	306 ⓘ early 4th century ⓘ
namedAfter	Constantine the Great NERFINISHED ⓘ
partOf	Late Antiquity NERFINISHED ⓘ
temporalLocation	4th century ⓘ

How these facts were elicited

Referenced by (11)

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

Thermae of Constantine → era → Constantinian period ⓘ

sarcophagus of Constantine the Great → stylePeriod → Constantinian period ⓘ

subject surface form: Sarcophagus of Constantine the Great

Battle of Adrianople (324) → era → Constantinian period ⓘ

this entity surface form: Late Roman Empire

Apollo Actius → timePeriod → Constantinian period ⓘ

this entity surface form: Roman Imperial period

Flavius Dalmatius (the elder) → historicalPeriod → Constantinian period ⓘ