with a population of 30,000. In 1917, the Russian Empire ended with the October Revolution. In the aftermath, Armenian, Georgian and Muslim leaders of Transcaucasia united to form the Transcaucasian Federation and proclaimed Transcaucasia's secession. The Federation, however, was short-lived. After gaining control over Alexandropol, the Turkish army was advancing towards the south and east to eliminate the center of Armenian resistance based in Yerevan. On 21 May 1918, the Turks started their campaign moving towards Yerevan via Sardarabad. Catholicos Gevorg V ordered that church bells peal for 6 days as Armenians from all walks of life – peasants, poets, blacksmiths, and even the clergymen – rallied to form organized military units. Civilians, including children, aided in the effort as well, as "Carts drawn by oxen, water buffalo, and cows jammed the roads bringing food, provisions, ammunition, and volunteers from the vicinity" of Yerevan. By the end of May 1918, Armenians were able to defeat the Turkish army in the battles of Sardarabad, Abaran and Karakilisa. Thus, on 28 May 1918, the Dashnak leader Aram Manukian declared the independence of Armenia. Subsequently, Yerevan became the capital and the center of the newly founded Republic of Armenia, although the members of the Armenian National Council were yet to stay in Tiflis until their arrival in Yerevan to form the government in the summer of the same year. Armenia became a parliamentary republic with four administrative divisions. The capital Yerevan was part of the Araratian Province. At the time, Yerevan received more than 75,000 refugees from Western Armenia, who escaped the massacres perpetrated by the Ottoman Turks during the Armenian genocide. On 26 May 1919, the government passed a law to open the Yerevan State University, which was located on the main Astafyan (now Abovyan) street of Yerevan. After the signing of the Treaty of Sèvres in 1920, Armenia was granted formal international recognition. The United States, as well as many South American countries, officially opened diplomatic channels with the government of independent Armenia. Yerevan had also opened representatives in Great Britain, Italy, Germany, Serbia, Greece, Iran and Japan. However, after the short period of independence, Yerevan fell to the Bolsheviks, and Armenia was incorporated into Soviet Russia on 2 December 1920. Although nationalist forces managed to retake the city in February 1921 and successfully released all the imprisoned political and military figures, the city's nationalist elite were once again defeated by