History glossary
Constantinople
the eastern Roman capital founded by Constantine, now the city of Istanbul in Turkey.
- Category
- City
- Region
- Modern Turkey
- Date range
- 330 CE-present as Istanbul
What it means
Constantinople was founded as a new Roman capital on the site of Byzantium in 330 CE. It became the capital of the eastern Roman, or Byzantine, Empire. After the Ottoman conquest in 1453, it became the Ottoman capital and is now Istanbul, Turkey's largest city.
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