Europe · Ancient World

Who was Constantine the Great?

A Roman emperor who ended the persecution of Christians, founded the city of Constantinople, and reshaped the future of the Roman Empire.

Constantine the Great (c. 272–337 CE) is remembered as a key figure from Turkey, known for their role: Roman emperor.

Country / regionTurkey · Europe
Known forRoman emperor
Yearsc. 272–337 CE
BornNaissus, Roman Empire
DiedNicomedia, Roman Empire

Why is Constantine the Great important?

Constantine the Great stands out in history for a specific reason: Ruled the Roman Empire from 306 to 337 CE. Their story helps place major events, ideas, and cultural change in a wider historical context.

Key achievements

  • Ruled the Roman Empire from 306 to 337 CE
  • Issued the Edict of Milan in 313 CE, ending official persecution of Christians across the empire
  • Founded the city of Constantinople, which served as an imperial capital for over a thousand years
  • Presided over the Council of Nicaea in 325 CE, a landmark moment in early Christian history

A fast fact

Although celebrated as the first Christian emperor for his 312 CE conversion and support of the faith, Constantine was not formally baptized until he lay on his deathbed in 337 CE.

Legacy

Constantine's reign marked a turning point in the Christianization of the Roman world, and Constantinople remained one of history's great cities long after the Western Roman Empire fell.

Turkeyancient historyrulersreligious leaders

What is Constantine the Great best known for?

A Roman emperor who ended the persecution of Christians, founded the city of Constantinople, and reshaped the future of the Roman Empire.

When and where did Constantine the Great live?

Constantine the Great was born in Naissus, Roman Empire (c. 272–337 CE) and died in Nicomedia, Roman Empire.

What is Constantine the Great's lasting legacy?

Constantine's reign marked a turning point in the Christianization of the Roman world, and Constantinople remained one of history's great cities long after the Western Roman Empire fell.

How can I learn more about Constantine the Great?

Use this profile as a starting point, then consult a library, museum, encyclopedia, or primary-source collection for deeper study.