Respuesta :
The Emperor Constantine is significant because he established the great city Constantinople , which after the Roman Empire was huge. (Constantinople is modern day Istanbul)
Answer:
Emperor Constantine (ca A.D. 280– 337) reigned over a major transition in the Roman Empire—and much more. His acceptance of Christianity and his establishment of an eastern capital city, which would later bear his name, mark his rule as a significant pivot point between ancient history and the Middle Ages.
Explanation:
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