Budapest later, with the help of the Russian Empire. 1867 was the year of Reconciliation that brought about the birth of Austria-Hungary. This made Budapest the twin capital of a dual monarchy. It was this compromise which opened the second great phase of development in the history of Budapest, lasting until World War I. In 1849 the Chain Bridge linking Buda with Pest was opened as the first permanent bridge across the Danube and in 1873 Buda and Pest were officially merged with the third part, Óbuda (Old Buda), thus creating the new metropolis of Budapest. The dynamic Pest grew into
Budapest movement to the neighbouring agglomeration in Pest county, i.e., suburbanisation. In the last decades of the 20th century the political changes of 1989–90 (Fall of the Iron Curtain) concealed changes in civil society and along the streets of Budapest. The monuments of the dictatorship were removed from public places, into Memento Park. In the first 20 years of the new democracy, the development of the city was managed by its mayor, Gábor Demszky. Budapest, strategically placed at the centre of the Carpathian Basin, lies on an ancient route linking the hills of Transdanubia with the Great Plain. By road it