During the medium Miocene (Badener layer) the pool broke and deposited in power less freshwater sediments (sands and conglomerates).

In the Sarmatian (upper Miocene) by the performance of the oceans a brackish fauna emerged and clay marl was deposited.

Alternating floods and ongoing relocations of the Danube bed, together with the formation of new rubble banks led to a low thickness of only 10 to 15 meters (33 to 49 ft).

The proportion of housing in the developed area amounts to 64.2%, plus 21.2% for operations, and 10.7% dedicated for facilities in the cultural, religious, sports or the public sector.

About 66% of green space is in parks, 22.3% in sport and leisure areas, with the remainder in small gardens and meadows.

[5] Brigittenau to the west is bordered by the Danube Canal, which separates it from the district of Döbling, in the northwest, and from Alsergrund, in the southwest.

The district boundary runs along the right bank, making the surface water of the Danube canal count towards Brigittenau.

Only the water area of the Danube belongs to three other Katastralgemeinden; the largest part lies in the Floridsdorf district.

The eight census-districts (Zählbezirke) in Brigittenau are: Kapaunplatz, Zwischenbrücken, Brigittaplatz, Lorenz Müller-Gasse, Wallensteinstraße, Wextraße, Höchstädtplatz und Nordwestbahnhof.

1618–1648: Thirty Years War: On 9 April 1645, the Swedish army under Lennart Torstenson won the Wolf's Lair (Wolfsschanze).

1683: Second Turkish siege of Vienna - During heavy fightings in the Wolf's Lair and near the current Friedensbrücke, the Brigittakapelle is destroyed.

A new road passing "Zwischen den Brücken" is created, therefore the Wolfsbrücke bridge is relocated further downstream.

1810: In Brigittenau, the first hand-craft businesses settles, such as a Kunstblecherei, a steam sawmill and a fire-syringe factory.

1838: The Emperor Ferdinand Northern Railway opens, in 1837 as the first steam train of the Empire of Austria (including Hungary at that time) on the leg Floridsdorf - Deutsch-Wagram, one year later crossing the Danube to the North Station at Praterstern.

1846: Clearing of the remaining riparian forests, erection of nurseries (Vorgartenstraße) in the north of the district.

Robert Blum, member of the Frankfurt Parliament and born in Cologne travels to Vienna for supporting the democratic movement.

1862: A major flood occurs, the final impetus to the Vienna Danube regulation starting in 1870.

The route into today's 21st district leads through Jägerstraße, Stromstraße and Marchfeldstraße and over the Kaiser Franz Joseph Bridge.

The "Transversallinie" (today line 5) connects the Vienna head stations of North, Northwest, Franz Joseph and Western Railway.

1924: Opening of the community residential complex "Winarsky-Court" (Winarsky-Hof); in its planning in 1921, well-known architects like Adolf Loos and Margarete Schütte-Lihotzky are involved.

In the hall of the northwest station (Nordwestbahnhof), the Nazi exhibition Degenerate Art (NS-Ausstellung Entartete Kunst) takes place.

April 1945: Heavy bomb damage to Bezirksamt, Brigittakirche, Leyschule and many other buildings, total destruction of the All Saints Church (Allerheiligenkirche).

After the completion of the Danube regulation in 1875, the number of inhabitants grew strongly by the addition of new mining areas from the 1880s.

In the 1880s and 1890s, Brigittenau was the fastest growing sub-district of Vienna, and in 1910, the district reached a peak of 101,326 residents.

After the First World War, the population of Brigittenau gradually, in particular the increased housing demand played a role.

The highest proportion of foreigners, in 2005, was represented by approximately 7.0% share of the district population as nationals from Serbia and Montenegro.

[6][8] Due to the high proportion of foreigners, Brigittenau with 42.4%, was one of the lowest populations of people with Roman Catholic faith (Vienna citywide: 49.2%).

The next time things moved was in 2010 when the SPÖ was decreased 8.5% and lost their absolute majority reaching 47.8% now and the FPÖ increased 11.3% up to now 27.9%.

It shows a red tongue on a silver background, surrounded by a golden halo, with 5 gold stars.

The coat of arms symbolizes, at the same time, the holy Johann Nepomuk, the patron of the bridges and also stands for that originally laid zone between the Danube and the Kaiserwasser.