Definition

Proper noun 1. A Roman Emperor: Flavius Theodosius, historically known as Theodosius I or Theodosius the Great, was the last emperor to rule over both the eastern and western halves of the Roman Empire as a single entity. 2. A Historical Figure: He is noted for several pivotal actions, including making Nicene Christianity the state church of the Roman Empire and suppressing pagan religious practices.

Examples of Usage

• As a subject:
  • Flavius Theodosius issued the Edict of Thessalonica in 380 AD.
  • The military campaigns of Flavius Theodosius helped stabilize the empire's frontiers.
• In historical context:
  • After the death of Emperor Valens, Flavius Theodosius was elevated to the imperial throne.
  • The reign of Flavius Theodosius marked a definitive turning point for Christianity in the ancient world.

Advanced Usage

• "The Theodosian Code": A major compilation of Roman laws commissioned by Theodosius II, but named in honor of Theodosius I. It is a key source for understanding late Roman law and society.
• "The Theodosian Dynasty": The ruling house founded by Flavius Theodosius, which included his sons Arcadius (East) and Honorius (West).

Variants and Related Words

• Theodosius I: The most common historical variant and the standard way to distinguish him from his grandson, Theodosius II.
• Theodosius the Great: An honorific title used by later historians to acknowledge his significant impact on the empire and Christianity.
• Theodosian (adj): Pertaining to Theodosius I or his dynasty (e.g., walls, policies).

Synonyms

• Theodosius I
• Theodosius the Great

Related Phrases and Contexts

• "The Edict of Thessalonica": Often associated directly with Flavius Theodosius, as it was his decree that established orthodox Christian doctrine.
• "The Battle of the Frigidus": A decisive battle in 394 where Theodosius I defeated the usurper Eugenius, which is often seen as a final victory for Christianity over paganism in the empire.

Noun

1. the last emperor of a united Roman Empire, he took control of the eastern empire and ended the war with the Visigoths; he became a Christian and in 391 banned all forms of pagan worship (346-395)