The city that the Ottoman Empire chose for its capital was Constantinople, which is now known as Istanbul.
The answer is Constantinople.
In 1453, Sultan Mehmed II, "The Conqueror" of the Ottoman Empire, attacked and conquered the capital's city of Roman/Byzantine Empire: Constantinople. One of the first things he did was to choose the city as his new capital, an Islamic one . He also turned Hagia Sophia (the main Greek cathedral) into a Turkish mosque, as well as many others, he initiated reconstruction projects for Constantinople and took several actions to re-populate it.
The Ottoman Empire chose Constantinople as its capital after conquering it in 1453 under Sultan Mehmed II. The city's strategic location between Europe and Asia made it vital for trade and cultural exchange. This choice marked a significant transformation in history, shifting the center of power from the Byzantine Empire to the Ottomans.
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