Vienna is the capital, most populous city, and one of nine federal states of Austria. It is Austria's primate city, with just over two million inhabitants. Its larger metropolitan area has a population of nearly 2.9 million, representin… See more

The place is mentioned as Οϋι[νδ]όβονα (Oui[nd]obona) in the 2nd century AD (Ptolemy, Geography, II, 14, 3); Vindobona in the 3rd century (Itinerarium Antonini Augusti 233, 8); Vindobona in the 4th century (… See more

Evidence has been found of continuous habitation in the Vienna area since 500 BC, when Celts settled the site on the Danube. In 15 BC, the Romans fortified the frontier city they called Vindobona to guard the empire against … See more

Because of the industrialization and migration from other parts of the Empire, the population of Vienna increased sharply during its time as the capital of Austria-Hungary (1867–1918). In 1910, Vienna had more than t… See more