Istanbul, formerly known as Byzantium and Constantinople, is the most populous city in Turkey and the country’s economic, cultural and historic center. Istanbul is a transcontinental city in Eurasia, straddling the Bosporus strait (which separates Europe and Asia) between the Sea of Marmara and the Black Sea.
With a total population of around 15 million residents in its metropolitan area, Istanbul is one of the world’s most populous cities, ranking as the world’s fifth-largest city proper and the largest European city. The city is the administrative center of the Istanbul Metropolitan Municipality.
Founded under the name of Byzantion on the Sarayburnu promontory around 660 BCE, the city grew in size and influence, becoming one of the most important cities in history. After its reestablishment as Constantinople in 330 CE, it served as an imperial capital for almost 16 centuries, during the Roman/Byzantine, Latin, Palaiologos Byzantine and Ottoman empires.
It was instrumental in the advancement of Christianity during Roman and Byzantine times, before the Ottomans conquered the city in 1453 CE and transformed it into an Islamic stronghold and the seat of the Ottoman Caliphate. Under the name Constantinople it was the Ottoman capital until 1923. The capital was then moved to Ankara and the city was renamed Istanbul.
The city held the strategic position between the Black Sea and the Mediterranean. It was also on the historic Silk Road. It controlled rail networks between the Balkans and the Middle East, and was the only sea route between the Black Sea and the Mediterranean.
In 1923, after the Turkish War of Independence, Ankara was chosen as the new Turkish capital, and the city’s name was changed to Istanbul. Nevertheless, the city maintained its prominence in geopolitical and cultural affairs. The population of the city has increased tenfold since the 1950s, as migrants from across Anatolia have moved in and city limits have expanded to accommodate them. Arts, music, film, and cultural festivals were established towards the end of the 20th century and continue to be hosted by the city today.
Over 12 million foreign visitors came to Istanbul in 2015, five years after it was named a European Capital of Culture, making the city the world’s fifth most popular tourist destination.
Istanbul experienced especially rapid growth during the second half of the 20th century, with its population increasing tenfold between 1950 and 2000. Only 28 percent of the city’s residents are originally from Istanbul. The most densely populated areas tend to lie to the northwest, west, and southwest of the city center, on the European side; the most densely populated district on the Asian side is Üsküdar.
Despite efforts to make Ankara Turkey’s cultural heart, Istanbul had the country’s primary institution of art until the 1970s. When additional universities and art journals were founded in Istanbul during the 1980s, artists formerly based in Ankara moved in. Beyoğlu has been transformed into the artistic center of the city.
Istanbul University, founded in 1453, is the oldest Turkish educational institution in the city. Although originally an Islamic school, the university established law, medicine, and science departments in the 19th century and was secularized after the founding of the Turkish Republic. Istanbul Technical University, founded in 1773, is the world’s third-oldest university dedicated entirely to engineering sciences.
Most established universities in Istanbul are backed by the government; the city also has several prominent private institutions.
In 2007, there were about 4,350 schools, about half of which were primary schools; on average, each school had 688 students. In recent years, Istanbul’s educational system has expanded substantially; from 2000 to 2007, the number of classrooms and teachers nearly doubled and the number of students increased by more than 60 percent. Galatasaray High School, established in 1481 as the Galata Palace Imperial School, is the oldest high school in Istanbul and the second-oldest educational institution in the city.
Istanbul’s primary motorways are the O-1, O-2, O-3 and O-4. The O-1 forms the city’s inner ring road, traversing the 15 Temmuz Şehitler (First Bosphorus) Bridge, and the O-2 is the city’s outer ring road, crossing the Fatih Sultan Mehmet (Second Bosphorus) Bridge.
Istanbul’s local public transportation system is a network of trams, funiculars, metro lines, Marmarail, buses, bus rapid transit, and ferries.
İIstanbul has three large international airports, two of which are currently in active service for commercial passenger flights. The largest is the new Istanbul Airport, opened in 2018 in the Arnavutköy district to the northwest of the city center, on the European side.
The glorious Istanbul continues to fascinate visitors and locals alike with its vibrancy and great variety. May it be in arts & culture, eating & drinking, shopping or sports there is always something new in Istanbul for everyone and every taste.
Touring Istanbul’s ornate houses of worship and palaces could keep history buffs busy for weeks. Most attractions are clustered in the Fatih area, though districts like Beyoglu (where Taksim Square resides) and Besiktas (which features Ortaköy and Dolmabahçe Palace) are no less exciting! The Blue Mosque and the Hagia Sophia Museum are essential, but simply exploring the street traffic and observing daily life here are equally fascinating. Food is a central part of the culture, so menus should be studied just as seriously as a map! And you should check out the many bazaars around town when looking for souvenirs, but if you only have time for one, be sure to visit the largest and most famous: the Grand Bazaar.