The History and Evolution of Constantinople, Now Istanbul
TLDR Constantinople, later renamed Istanbul, was a strategically located city that served as the capital of the Roman Empire and later the Ottoman Empire. Despite being besieged by enemies, it never fell due to its strategic location and massive walls. Today, Istanbul is a major economic center and the 15th largest city in the world.
Timestamped Summary
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In 330, the Roman Emperor Constantine moved the capital of the Roman Empire to Byzantium, which later became the city of Constantinople and is now known as Istanbul.
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Constantinople, now known as Istanbul, was a city that changed hands multiple times throughout history and was eventually renamed by Emperor Septimius Severus before becoming the capital of the Roman Empire under Emperor Constantine.
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Constantine chose a strategically advantageous location for his new capital, Constantinople, which was protected by water on two sides and a massive wall on the land side, and he designed the city to be a Christian stronghold with various amenities and incentives for people to move there.
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Constantinople, established as the capital in 330, grew wealthy and became the center of Christianity in the East, with Greek as the dominant language, and despite being besieged by numerous enemies, it never fell due to its strategic location and massive walls.
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In the early 8th century, Emperor Leo III outlawed the use of religious icons and worship, which greatly shaped the churches in Constantinople, and in 1054, the great schism between the Eastern and Western churches occurred, solidifying Constantinople as the seat of Eastern Orthodoxy.
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Constantinople became the center of the Ottoman Empire, with the Hagia Sophia converted into a mosque and the city experiencing a population boom, but the empire eventually collapsed and the capital of Turkey was moved to Ankara.
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Constantinople, now known as Istanbul, has grown into a major economic center with a population of 15 million people, making it the 15th largest city in the world and home to 20% of Turkey's population.