Called Istanbul, Turkey Istanbul, historically known as Byzantium and Constantinople is the largest city in Turkey and fifth largest city in terms of population, the population today, about 13 million people, and is considered the commercial center, culturally and economically wide and is divided into 39 provinces
Istanbul historically considered M capitals, where it was the capital of many states and empires throughout history, the successive start of the Roman Empire and the Ottoman Empire
Istanbul witnessed a radical change, where it was classified as an area of the Christian city of the god he has radically changed, becoming the capital of the Islamic caliphate in 1517
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Istanbul has been and remains the basis of economic life in Turkey, due to its geographical location and an important day in Istanbul for about 40% of the Turkish industry and provides 20% of the labor force in the country
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