Danube-Gunz interglacial age of about 900,000 to 940,000 years. There are however indications that the Uhlenberg Profile may still be placed within the Pliocene, and it would thus not correlate with the Danube-Gunz interglacial. Also uncertain is its association with the North German classification because of its position in the underlying stratum of the Gunz it could correspond to the Bavelian or the Waalian interglacial. The Danube-Gunz corresponds at least in part to the Swiss Deckenschotter glaciations. Danube-Gunz interglacial The Danube-Gunz interglacial (), Danube-Gunz warm period ("Donau-Günz-Warmzeit"), often just Danube-Gunz, or also Uhlenberg interglacial ("Uhlenberg-Warmzeit") is the second-oldest named warm period of
The Blue Danube After the original music was written, the words were added by the Choral Association's poet, Joseph Weyl. Strauss later added more music, and Weyl needed to change some of the words. Strauss adapted it into a purely orchestral version for the 1867 Paris World's Fair, and it became a great success in this form. The instrumental version is by far the most commonly performed today. An alternate text was written by , "" (Danube so blue). "The Blue Danube" premiered in the United States in its instrumental version on 1 July 1867 in New York, and in Great Britain in