Here is a timeline of the major events in the history of Constantinople:
* 324: The Roman Emperor Constantine I founded the city of Constantinople on the site of the ancient city of Byzantium.
* 330: Constantinople became the capital of the Roman Empire.
* 379: The Roman Empire was divided, and Constantinople became the capital of the Eastern Roman Empire (also known as the Byzantine Empire).
* 1204: Constantinople was captured by the Crusaders, who established the Latin Empire.
* 1261: The Byzantines recaptured Constantinople and restored the Byzantine Empire.
* 1453: Constantinople was captured by the Ottoman Turks, who renamed the city Istanbul and made it the capital of the Ottoman Empire.
* 1923: The Turkish Republic was established, and the capital of Turkey was moved from Istanbul to Ankara.
Today, Istanbul is a modern, vibrant city with a rich history and culture. It is home to many iconic landmarks, including the Hagia Sophia, the Blue Mosque and the Grand Bazaar. Istanbul is also a major center of commerce and trade.