How long did it take to build Istanbul?

Answer 1

Istanbul, originally known as Byzantium, has a history that spans thousands of years, with its establishment dating back to around 660 BCE. The city underwent significant transformations over the centuries, especially during the Roman, Byzantine, and Ottoman periods. Major construction projects, such as the Hagia Sophia and the Topkapi Palace, took years to complete, reflecting the city's evolving architecture and culture. Therefore, rather than a specific duration for its "building," Istanbul's development is a continuous process shaped by various civilizations over millennia.