of Livonia. During the second half of the 19th century, Tartu was the cultural centre for Estonians in the era of Romantic nationalism. The city hosted Estonia's first song festival in 1869. Vanemuine, the first national theatre, was established in 1870. Tartu was also the setting for the foundation of the Society of Estonian Writers in 1872. Tartu railway station was opened in 1876 when Tapa–Tartu route was built. The station building was opened in 1877. In the history of tuberculosis, in 1891 The Veterinary College at Dorpat produced seminal research using the Tuberculin test on 1,000 cattle. In 1893, the city was officially retitled to the ancient Russian name Yuryev. The university was subsequently russified from 1895 on with the introduction of compulsory Russian in teaching. Much of the university property was relocated to Voronezh in 1918 and during the German occupation, the University worked under the name Landesuniversität Dorpat. During the Estonian War of Independence the university of Tartu was re-opened as an Estonian language university on 1 December 1919. Independent Estonia (1918–1940) With Estonian independence after World War I, the city officially became known by the Estonian name Tartu. At the end of the 1918–1920 Estonian War of Independence following World War I, a peace treaty between the Bolshevik Russia and Estonia was signed on 2 February 1920 in Tartu (Treaty of Tartu). With the treaty, Soviet Russia renounced territorial claims to Estonia "for all time". In 1920, the peace treaty between Soviet Russia and Finland was also signed in Tartu. During the interwar period Tähtvere neighbourhood was built, former Raadi Manor buildings started to house Estonian National Museum (destroyed during Tartu Offensive in 1944) and art school Pallas was opened. German and Soviet occupations (1940–1991) During World War II, the Stalinist Soviet Union invaded and occupied Estonia and Tartu in June 1940. Large parts of the city as well as the historical Kivisild ("Stone bridge", built in 1776–1778) over the Emajõgi river were destroyed by the retreating Soviet Army, partly in 1941 and almost completely in 1944 by then retreating German Army. Already heavily damaged, Tartu was repeatedly bombed by the Soviet air forces on 27 January 1943, on 26 February 1944, on 7–8 March 1944, and on 25–26 March 1944. After the war ended, much of the city's historic centre was left in ruins. Even the less damaged buildings in entire city blocks were demolished