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Historical person

Theodosius I Biography

Historical biography and chronological timeline for Theodosius I, based on 20 World History Database records associated with Roman Empire.

20 records374–39515 events6 places

Chronological biography

374

Governor374
Government / Government of Roman Empire · Emperor · Governor of Moesia Prima · Moesia

Appointed Governor of Moesia Prima

379

Succession19 January 379
House / House of Theodosius · Emperor

Succeeds as Emperor of Rome, in the East

380

Edict of Thessalonika27 February 380
Religion / Roman Catholic Church · Emperor · Thessalonika

The Edict is issued after Theodosius had been baptized by the Bishop Ascholius of Thessalonica upon suffering a severe illness in Thessalonica

Edict of Thessalonika27 February 380
Religion / Roman Catholic Church · Emperor · Thessalonika

The Edict of Thessalonica (also known as Cunctos populos) isissued by the three reigning Roman Emperors, making Nicene Christianity the state religion of the Roman Empire

Edict of Thessalonika27 February 380
Religion / Roman Catholic Church · Emperor · Thessalonika

The Edict of Thessalonika is issued under the influence of Acholius, and thus of Pope Damasus I, who had appointed him to affirm a single expression of the Apostolic Faith as legitimate in the Roman Empire, "catholic" (that is, universal) and "orthodox" (that is, correct in teaching)

Edict of Thessalonika27 February 380
Religion / Roman Catholic Church · Emperor · Thessalonika

Theodosius attempts to suppress all non-Nicene forms of Christianity, especially Arianism, to establish Nicene orthodoxy

Nicene Christianity27 February 380
Religion / Roman Catholic Church · Emperor · Thessalonika

The Edict of Thessalonica (also known as Cunctos populos) isissued by the three reigning Roman Emperors, making Nicene Christianity the state religion of the Roman Empire

381

Council of Constantinople381
Religion / Roman Catholic Church · Emperor · Istanbul

The First Council of Constantinople, which affirms the Nicene Symbolum gives final form to the Nicene-Constantinopolitan Creed. The First Council of Constantinople is convened by Theodosius, the second ecumenical council, an effort to attain consensus in the church through an assembly representing all of Christendom, confirmed the Nicene Creed, expanding the doctrine thereof to produce the NicenoConstantinopolitan Creed

Edict of Thessalonika381
Religion / Roman Catholic Church · Emperor · Thessalonika

The Edict of Thessalonika is followed by the First Council of Constantinople which affirms the Nicene Symbolum and gives final form to the Nicene-Constantinopolitan Creed

Nicene Creed381
Religion / Roman Catholic Church · Emperor · Istanbul

The First Council of Constantinople is convened by Theodosius, the second ecumenical council, an effort to attain consensus in the church through an assembly representing all of Christendom, confirmed the Nicene Creed, expanding the doctrine thereof to produce the NicenoConstantinopolitan Creed

Nicene-Constantinopolitan Creed381
Religion / Roman Catholic Church · Emperor · Istanbul

The First Council of Constantinople, which affirms the Nicene Symbolum gives final form to the Nicene-Constantinopolitan Creed. The First Council of Constantinople is convened by Theodosius, the second ecumenical council, an effort to attain consensus in the church through an assembly representing all of Christendom, confirmed the Nicene Creed, expanding the doctrine thereof to produce the NicenoConstantinopolitan Creed

388

Battle of Aquileia388
Warfare / Civil War · Emperor · Aquileia

Defeats Magnus Maximus, assassinated Emperor Gratian when he entered Italy

Invasion of Italy388
Warfare / Civil War · Emperor

Magnus Maximus invades Italy

390

Excommunication390
Religion / Roman Catholic Church · Emperor · Thessalonika

Theodosius is excommunicated by Ambrose for massacaring 7,000 in Thessalonika

Massacre390
Warfare / Military · Emperor

Theodosius massacres 7,000 & must beg forgiveness from the Ambrose, Bishop of Milan

391

Reform of Government391
Government / Government of Roman Empire · Emperor

Christianity becomes the state religion, all heathen cults are prohibited

394

Battle of Frigidus394
Warfare / Civil War · Emperor · Frigidus

Defeats Eugenius, re-unite both halves of the Empire under his control

Death of Theodosius I394
Warfare / Civil War · Emperor · Frigidus

Defeats Eugenius, re-unite both halves of the Empire under his control

Rule of Empire394
Warfare / Civil War · Emperor · Frigidus

Defeats Eugenius, re-unite both halves of the Empire under his control

395

Death of Theodosius IJanuary 395
House / House of Theodosius · Emperor · Milan

Death of Theodosius I, in Mediolanum (Milan)

Titles and roles

Emperor · Emperor · Governor of Moesia Prima

Record provenance

This biography is assembled from World History Database records filtered by country and personal-name fields. Exact duplicate display records are removed. The database is an index rather than a complete narrative biography; formal research should verify entries against relevant primary or specialist sources.