German Inland Waterways Museum German Inland Waterways Museum The German Inland Waterways Museum (Museum der Deutschen Binnenschifffahrt) is located in Ruhrort, Duisburg at the nucleus of Duisburg-Ruhrorter ports which today make up the largest European inland harbour complex. The museum was founded in 1974 with purchase of the museum ship "Oscar Huber". In 1998 the museum was moved from the old town hall into the city's former indoor swimming facility, an Art Nouveau landmark which had been built in 1910, closed in 1986, and declared a protected historic site in 1988. The move allowed the museum the space to exhibit complete ships, as well
Battle of the Ruhr the Ruhr, Bomber Command estimated about 70% of their aircraft losses were due to fighters. By July 1943, the German night fighter force totalled 550. Through the summer of 1943, the Germans increased the ground-based anti-aircraft defences in the Ruhr Area; by July 1943 there were more than 1,000 large flak guns (88 mm caliber guns or greater) and 1,500 lighter guns (chiefly 20 mm and 37 mm calibre). This was about one-third of all anti-aircraft guns in Germany. Six-hundred thousand personnel were required to man the AA defences of Germany. The British crews called the area sarcastically "Happy Valley"