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For other uses of "Danube", see Danube (disambiguation).
Danube in Ulm
Danube in Ulm
Length 2 860 km
Elevation of the source - m
Average discharge 6 400 m³/s
Area watershed 817 000 km²
Origin In the Black Forest
Mouth Black Sea (Romania)
Basin countries Germany, Austria,
Slovakia, Hungary,
Croatia, Serbia,
Bulgaria, Romania,
and Ukraine

The Danube (Esperanto Danubo, Bulgarian Dunav, German Donau, Greek Ister, Hungarian Duna, Latin Danuvius or Danubius, Romanian Dunăre, Serbian and Croatian Dunav, Slovak Dunaj, Ukrainian Dunay) is the second-longest river in Europe (the Volga being the longest).

It is the only major European river to flow from west to east. It rises in Germany in the Black Forest as two smaller rivers called Brigach and Breg, which join in Donaueschingen and are called Donau henceforth, flowing south-east for a distance of about 2850 km (1770 miles), to the Black Sea in Romania where the Danube Delta is.

The Danube is an important international waterway. It flows through nine countries (Germany, Austria, Slovakia, Hungary, Croatia, Serbia, Bulgaria, Romania, and Ukraine), with tributary rivers in seven other countries. It flows through the following large cities:

After the construction of the German Rhine-Main-Danube Canal in 1992, the river is part of a trans-european waterway from Rotterdam on the North Sea to Sulina on the Black Sea (3500 km). The amount of goods transported on the Danube increased to about 100 million tons in 1987. In 1999, transport on the river was made difficult by the NATO bombing of 3 bridges in Serbia. The clearance of the debris was finished in 2002. See also the Danube-Black Sea Canal.

A map showing the Danube
A map showing the Danube


Although the headwaters of the Danube are relatively small today, geologically, the Danube is much older than the Rhine, with which its catchment area competes in today'Alps" title ="Alps">Alps mountains which flows north towards the North Sea, an invisible line divides large parts of southern Germany, which is sometimes referred to as the European Watershed.

However, before the last ice age in the Pleistocene, the Rhine started at the southwestern tip of the Black Forest, while the waters from the Alps that today feed the Rhine were carried east by the so-called Urdonau (original Danube). Parts of this ancient river's bed, which was much larger than today's Danube, can still be seen in (now waterless) canyons in today'Swabian_Alb" title ="Swabian Alb">Swabian Alb. After the Upper Rhine Valley had been eroded, most waters from the Alps changed their direction and began feeding the Rhine. Today's upper Danube is but a meek reflection of the ancient one.

Since the Swabian Alb is largely shaped of porous limestone, and since the Rhine's level is much lower compared to the Danube, today, subsurface rivers carry much water from the Danube to the Rhine. On many days in the summer, when the Danube carries little water, it completely oozes away noisily into these underground channels at two locations in the Swabian Alp, which are referred to as the Donauversickerung (Danube Sink). Most of this water resurfaces only 12 km south at the Aachtopf, Germany'Lake_Constance" title ="Lake Constance">Lake Constance -- thus feeding the Rhine. The European Water Divide thus in fact only applies for those waters that pass beyond this point, and only during the days of the year where the Danube carries enough water in the first place.

Danube in Budapest
Danube in Budapest

Since this enormous amount of underground water erodes much of its surrounding limestone, it is estimated that the Danube upper course will one day disappear entirely in favor of the Rhine, an event called stream capturing.

Cultural significance

The Danube is mentioned in the title of a famous waltz by Austrian composer Johann Strauss, An der schönen, blauen Donau (By the Beautiful Blue Danube).

The German tradition of landscape painting Danube school was developed in the Danube vally in the 16th century.

The most famous book describing Danube ought to be Claudio Magris' Danube ISBN 1860468233.

External links

ast:Danubiu bg:Дунав ca:Danubi cy:Afon Donaw da:Donau de:Donau et:Doonau es:Danubio eo:Danubo fr:Danube ko:도나우 강 id:Donau it:Danubio nl:Donau ja:ドナウ川 nds:Donau pl:Dunaj pt:Danúbio ro:Dunăre sv:Donau zh-cn:多瑙河

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