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Instanbul
To be clear, the Ottomans renamed Constantinople Instanbul in 1453. But yes, Instabul is the largest city in all of Europe, with an official population of 14.1 million people.
Constantinople was conquered by the ottoman Turks in 1453. The Turks used both the name Kostantiniyye in their official documents, and Istanbul was the was the popular name. The Europeans continued to call it Constantinople. In 1923 the Turkish government decided that Istanbul was to be the sole name of the city.
Before the 1930s Istambul's name was Istambul. The city Constantine I named in 330BC was Roma Nova. However, people never used that name, preferring to call it Constantinople. The original name of the city was Byzantium
Constantinople and before that it was Byzantium.
Bosporus.....
Turkey
Ankara Instanbul.
Instanbul-Shanghai
200,000,000 miles away
No. They left before they did.
Constantinople.