Syr-Darya Oblast () was one of the oblasts of the Russian Empire, a part of Russian Turkestan. Its center was Tashkent. History The Syr-Darya Oblast was founded after annexing the northwestern part of Khanate of Kokand, Chimkent ( established in 1709, declaring independence from Emirate of Bukhara) and the northwestern part of Khanate of Khiva (for Amu Darya Okrug at present Karakalpakstan) in 1867. Khiva was conquered by the Russians in 1873 who made Sayyid Muhammad Rahim Bahadur Khan II vassal ruler of the region. From 1905, Pan-Turkist ideologues like Ismail Gasprinski aimed to bridge differences among the peoples who spoke Turkic languages, uniting them into one government. This idea was supported by Vladimir Lenin, and on April 30, 1918, with support of the Bolsheviks in Tashkent, the Turkestan Autonomous Soviet Socialist Republic (ASSR) was established with Tashkent as the capital. During the Russian Empire, the Turkestan ASSR's territory was governed as Turkestan Krai, the Emirate of Bukhara, and the Khanate of Khiva. Early Central Asia Bolshevik leaders, the Kazakh Turar Ryskulov and the Uzbek Fayzullah Khojaev, believed all territories would sooner or later be unified into one state, Soviet Turkestan. Without a tradition of national institutions and consciousness prior to the October Revolution of 1917, Central Asia was divided into “national republics” in 1924. On October 27, 1924 as a result of the national-territorial reorganisation of Central Asia, most of the Syr-Darya region was transferred to the Kara-Kirghiz Autonomous Oblast of the Russian Soviet Federative Socialist Republic (RSFSR), and on 1 February 1926 to the Kyrgyz (Kazakh) ASSR (Kirghiz Autonomous Socialist Soviet Republic), still being a part of the RSFSR. The remaining smaller region Tashkent County became a part of the Uzbek Soviet Socialist Republic (SSR) of the Soviet Union. These borders were not drawn along ethnic or linguistic lines. The Kirghiz Autonomous Socialist Soviet Republic later transformed into the Kirghiz Soviet Socialist Republic (1936–1990), the Socialist Republic of Kyrgyzstan (1990-1991) and the independent Republic of Kyrgyzstan (1991). Geography It bordered with Turgay Oblast, Akmola Oblast (Its center was Omsk), Semirechye Oblast, Samarkand Oblast, Fergana Oblast (till 1876 as Khanate of Kokand before annexing to Russia), and semi-independent states of Khanate of Khiva and Emirate of Bukhara. The area of 504,700 km ² (443,442 sq. m. Miles). The greatest stretch of longitude - about 1173 kilometers (1100 miles) in width is about - 747 km (700 miles). Syr-Darya region