Question 1

Who was Flavius Theodosius, and why is he said to be the last emperor of a united Roman Empire?

Accepted Answer

Flavius Theodosius, known as Theodosius I or “the Great,” was the last emperor to rule alone over the entire Roman Empire, both in the East and in the West. The key point to remember is that after his death in 395, the Empire was permanently divided between his two sons: Arcadius received the East, Honorius the West. This division was never undone. Theodosius is also the one who made Nicene Christianity the official religion through the Edict of Thessalonica in 380. Less a conqueror than a reorganizer, he stabilized the Empire after the Gothic crisis while laying the foundations of Christian Europe.

Question 2

What role did the Edict of Thessalonica play in the history of Christianity?

Accepted Answer

The Edict of Thessalonica (380), also called Cunctos populos, made Nicene Christianity the official religion of the Roman Empire. To understand this, you have to remember that at the time several versions of Christianity coexisted, including Arianism, which regarded Christ as inferior to God the Father. What makes this edict decisive is that it imposed a single orthodoxy and banned the other practices, including pagan cults. The key to the episode is that Theodosius did not merely tolerate: he legislated, and the emperors who followed would inherit this alliance between throne and Church.

Question 3

Why is the massacre of Thessalonica in 390 a landmark event of Theodosius's reign?

Accepted Answer

In 390, after the population of Thessalonica had lynched a Gothic general, Theodosius ordered a massacre in the hippodrome: several thousand spectators were killed. What is striking here is the reaction of the bishop of Milan, Ambrose, who refused to give communion to the emperor and forced him into a public penance. Imagine that the all-powerful emperor had to humble himself before a bishop: this episode illustrates the new balance of power between imperial authority and the Church, where the spiritual could now constrain the temporal. It is a turning point in the relationship between State and Church.

Question 4

Which objects symbolize Theodosius's power and his Christian faith?

Accepted Answer

Among the typical objects, the labarum (a Christian standard adorned with the Chi-Rho) and the imperial purple (a cloak dyed purple) embody both imperial authority and the Christianization of the Empire. The Missorium of Theodosius, a large chased silver dish, shows him enthroned between his sons, a symbol of dynastic continuity. What is often forgotten is that these objects are not mere decorations: they carry a political and religious message. For example, the labarum, inherited from Constantine, proclaims that the emperor fights under the protection of Christ.

Question 5

Which places are associated with the life and deeds of Theodosius?

Accepted Answer

Several cities are key: Constantinople, his main residence, where he presided over the council of 381; Thessalonica, where he promulgated the edict of 380 and where the massacre took place; Milan, where he died in 395 after doing penance before Ambrose; and the Frigidus River (today in Slovenia), the scene of his decisive victory in 394. What sets these places apart is that they mark out both the military career and the religious policy of Theodosius. Each one marks a stage in the unification of the Empire around Christianity.

Question 6

What do ancient sources say about Theodosius's penance after the massacre of Thessalonica?

Accepted Answer

The bishop Ambrose of Milan, in his Letter 51, wrote: “I urge you, I beg you, I implore you, I warn you; for it grieves me that you, who were a model of piety, did not recoil in horror at the death of so many innocents.” The historian Socrates Scholasticus reports that the emperor, moved by these reproaches, laid aside the imperial insignia and did public penance in the church. The key point to remember is that these texts show how the Church henceforth imposed its moral authority, even on the emperor.

Question 7

What was Theodosius's daily life like at the imperial court?

Accepted Answer

The emperor's day began with receiving his counselors and reviewing the reports of the governors. The afternoon was devoted to public audiences and meetings with the bishops. In the evening, he dined frugally, observing the fasts prescribed by the Church. To understand this, you have to remember that Theodosius, though an all-powerful emperor, submitted to a strict religious discipline, especially after his penance. He wore the purple and the diadem, but sometimes exchanged these insignia for the simple garments of a penitent. His life blended imperial splendor with Christian devotion.

Question 8

Which events contemporary with Theodosius's reign left their mark on the Roman Empire?

Accepted Answer

Several key events frame his reign: the disaster of Adrianople in 378, where the Goths annihilated the Eastern Roman army; the foedus of 382, which settled the Goths as federates within the Empire; and the Battle of the Frigidus in 394, where Theodosius crushed the pagan usurper Eugenius. What makes these events important is that they show an empire in transformation, both threatened by the “barbarians” and undergoing a full religious reshaping. The key is that Theodosius managed to maintain unity, but at the cost of integrating the Germanic peoples, which transformed the Empire profoundly.

Question 9

What is the essential vocabulary for understanding Theodosius's reign?

Accepted Answer

Among the key terms: edict (an imperial law), Nicene (following the Creed of Nicaea), Arianism (the heresy denying the divinity of Christ), paganism (polytheistic cults), foedus (a treaty settling foreign peoples), penance (public repentance imposed by the Church), and labarum (a Christian standard). The key point to remember is that these words reflect the great issues of the time: the definition of Christian dogma, the struggle against pagan cults, and the management of the Germanic peoples. Mastering this vocabulary means understanding the transformations of the late Roman Empire.

Question 10

What modern legacy did Theodosius leave in culture and collective memory?

Accepted Answer

Theodosius is often presented as the “last emperor” and the champion of orthodox Christianity. His name is associated with the Edict of Thessalonica, a cornerstone of Christian Europe, and with the penance of Milan, a symbol of the submission of temporal power to spiritual authority. In art, he appears on the missorium and in Byzantine mosaics. What is often forgotten is that his reign also marks the end of the ancient Olympic Games, traditionally attributed to his anti-pagan edicts. Less well known than Constantine, he is nonetheless a key figure in the transition between Antiquity and the Middle Ages.

Theodosius I

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