The city held the strategic position between the Black Sea and the Mediterranean. It was also on the historic Silk Road. 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. 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.