industrialization. Today, a commemorative panel at Floridsdorf train station proclaims that on 23 November 1837 with the opening of the first section of the Emperor Ferdinand Northern Railway between Floridsdorf and Deutsch-Wagram, the age of the railways began in Austria. From the middle of the 19th century, there were efforts to make Vienna reichsunmittelbar (self-governing under the Kaiser), separating it from the crown land of Austria at the Enns, Floridsdorf being envisaged as the future capital of Lower Austria. By 1904, Floridsdorf was made up of the localities Jedlesee, Greater Jedlersdorf, Donaufeld, Leopoldau, Kagran, Hirschstetten, Stadlau, and Aspern. Then in 1910, Strebersdorf was also incorporated into Vienna. Through the establishment of the new district Donaustadt in 1938, Floridsdorf lost Kagran, Stadlau, Hirschstetten, Aspern and Lobau. During the Oil campaign of World War II, the Floridsdorf oil refinery and oil sidings were bombed by the Allies, in addition to a part of the southern Heinkel aviation firm's Heinkel-Süd military aircraft production facilities. In 1954, the borders of Lower Austria and Donaustadt were re-drawn and Stammersdorf incorporated. Geography Topography North Floridsdorf is dominated by the southern foothills of Bisamberg. Since the summit of the Bisamberg hill, at , is today in Lower Austria, Floridsdorf's highest elevation is the Falkenberg, at . The Danube marks Floridsdorf's southwestern border. Part of the New Danube and a section of the Danube Island fall within the district, while the wetlands immediately beyond form part of Döbling. Bridges spanning the Danube to Floridsdorf (listed by the Danube's direction of flow) include the Jedlesee bridge, the Vienna North Bridge, the Floridsdorf Bridge, the U6-Danube Bridge and the Brigittenauer Bridge. The northern section of the Old Danube flows through Floridsdorf. In 1992, the Marchfeld Canal, which crosses the district, was put into operation. Sub-districts Floridsdorf comprises seven formerly independent communities: Floridsdorf, Donaufeld, Greater Jedlersdorf, Jedlesee, Leopoldau, Stammersdorf, and Strebersdorf, plus portions of two others. The eponymous Floridsdorf sub-district is also the smallest in area. The largest is Stammersdorf, to the north. Stammersdorf borders Strebersdorf and Großjedlersdorf, consisting of the two communities Großjedlersdorf I and II. To the east, on the border of the 22nd district, are Leopoldau and Donaufeld. Jedlesee in the west is composed of Jedlesee and Schwarze Lackenau. In addition to these full sub-districts, Floridsdorf also contains parts of Kagran and Kaisermühlen, the greater portions of which lie in the district of Donaustadt. Census districts Floridsdorf is