Sincan, Ankara Sincan, Ankara Sincan is a metropolitan district of Ankara Province in the Central Anatolia region of Turkey, a large town 27 km from the city of Ankara. According to 2010 census, the population of Sincan is 456,420 The district covers an area of , and the average elevation is . Sincan has friendly relations with the municipality of Doboj Jug from Bosnia and Herzegovina. Sincan District hosts ASO 1. Organize Sanayi Bölgesi, the biggest Organized Industrial Zone in Ankara, operated by Ankara Chamber of Industry. Sincan stands on a plain surrounded by hills and watered by the Ankara River, a
History of Ankara in 1356. Another Turkic ruler, Timur, defeated the Ottomans at the Battle of Ankara in 1402 and captured the city, but in 1403 Ankara was again under Ottoman control. Following the Ottoman defeat during World War I, the Ottoman capital Constantinople was occupied by the Allies. The Turkish nationalist movement, under Kemal Atatürk, established its headquarters in Ankara in 1920 (see Turkish War of Independence). After the War of Independence was won, the Turkish nationalists abolished the Ottoman Empire on October 29, 1923. A few days earlier, on October 13, 1923, Ankara had replaced Constantinople as its capital, and it