Britannica, IstanbulArchived 2007-12-18 at the Wayback Machine:When the Republic of Turkey was founded in 1923, the capital was moved to Ankara, and Constantinople was officially renamed Istanbul in 1930.
web.archive.org
Britannica, IstanbulArchived 2007-12-18 at the Wayback Machine:When the Republic of Turkey was founded in 1923, the capital was moved to Ankara, and Constantinople was officially renamed Istanbul in 1930.
"Governance". Zoryan Institute. Archived from the original on 26 February 2013. Retrieved 7 May 2013.
zoryaninstitute.org
"Governance". Zoryan Institute. Archived from the original on 26 February 2013. Retrieved 7 May 2013.