History
Vienna began as Vindobona, a Roman legionary camp built from around AD 97 on the Danube frontier of Pannonia, with a civilian town beside it that gained city rights in 212. In 1155 Duke Henry II of the Babenberg family moved his residence here from Klosterneuburg, at the time the Schottenstift was founded. Under the Habsburgs Vienna became the seat of the Holy Roman emperors, and it survived two Ottoman attacks, the siege of 1529 and the Battle of Vienna in 1683, as well as the Great Plague of 1679, which killed nearly a third of its people.
Victory over the Ottomans began a century of Baroque building, and in the late 19th century the old bastions were replaced by the Ringstrasse, lined with the opera, parliament, city hall and museums. By 1910 Vienna had more than two million inhabitants, the third-largest city in Europe, the capital of Austria-Hungary and the city of the Secession, Loos, Wittgenstein and Freud. After 1918 the Social Democrats ran "Red Vienna", building the Gemeindebauten, the council housing still central to the city, until the civil war of 1934, when the army shelled the Karl-Marx-Hof.
In 1938 Hitler announced the Anschluss to a crowd of 200,000 on the Heldenplatz. Of almost 200,000 Viennese Jews, around 120,000 were driven to emigrate and about 65,000 were murdered. Bombing destroyed around a third of the centre and burned the State Opera and the Burgtheater, and the Red Army took the city in April 1945. Four-power occupation lasted until 1955, when both theatres reopened, and the Vienna International Centre later brought the UN. Its centre became a World Heritage Site in 2001 and was on UNESCO's endangered list from 2017 until July 2026.
