Aachen is, with around 249,000 inhabitants, the 13th-largest city in North Rhine-Westphalia, and the 28th-largest city of Germany.
Dortmund is the third-largest city in North Rhine-Westphalia after Cologne and Düsseldorf, and the eighth-largest city of Germany, with a population of 588,250 inhabitants as of 2021. It is the largest city of the Ruhr, Germany's largest urban area with some 5.1 million inhabitants, as well as the largest city of Westphalia. On the Emscher and Ruhr rivers, it lies in the Rhine-Ruhr Metropolitan Region and is considered the administrative, commercial, and cultural center of the eastern Ruhr. Dortmund is the second-largest city in the Low German dialect area after Hamburg.
Gelsenkirchen is the 11th largest city of Germany's most populous federal state of North Rhine-Westphalia and its 262,528 (2016) inhabitants make it the 25th largest city of Germany. On the Emscher River, it lies at the centre of the Ruhr, the largest urban area of Germany, of which it is the fifth largest city after Dortmund, Essen, Duisburg and Bochum. The Ruhr is located in the Rhine-Ruhr Metropolitan Region, one of Europe's largest urban areas. Gelsenkirchen is the fifth largest city of Westphalia after Dortmund, Bochum, Bielefeld and Münster, and it is one of the southernmost cities in the Low German dialect area. The city is home to the football club Schalke 04, which is named after Gelsenkirchen-Schalke. The club's current stadium Veltins-Arena, however, is located in Gelsenkirchen-Erle.
RWE AG is a German multinational energy company headquartered in Essen. It generates and trades electricity in Asia-Pacific, Europe and the United States. The company is the world's number two in offshore wind power and Europe's third largest in renewable energy. In the 2020 Forbes Global 2000, RWE Group was ranked as the 297th -largest public company in the world.
A hammer mill, hammer forge or hammer works was a workshop in the pre-industrial era that was typically used to manufacture semi-finished, wrought iron products or, sometimes, finished agricultural or mining tools, or military weapons. The feature that gave its name to these workshops was the water-driven trip hammer, or set of hammers, used in the process. The shaft, or 'helve', of the hammer was pivoted in the middle and the hammer head was lifted by the action of cams set on a rotating camshaft that periodically depressed the end of the shaft. As it rose and fell, the head of the hammer described an arc. The face of the hammer was made of iron for durability.
Georgsmarienhütte is a town in the district of Osnabrück, in Lower Saxony, Germany. It is situated in the Teutoburg Forest, approx. 7 km south of Osnabrück.
The Cologne–Aachen high-speed line is the German part of the Trans-European transport networks project high-speed line Paris–Brussels–Cologne. It is not a newly built railway line, but a project to upgrade the existing railway line which was opened in 1841 by the Rhenish Railway Company. When it was continued into Belgium in 1843, it became the world's first international railway line.
The Rhine–Herne Canal is a 45.6-kilometre-long (28.3 mi) transportation canal in the Ruhr area of North Rhine-Westphalia, Germany, with five canal locks. The canal was built over a period of eight years and connects the harbour in Duisburg on the Rhine with the Dortmund-Ems Canal near Henrichenburg, following the valley of the Emscher. It was widened in the 1980s. The Rhein-Herne canal ship was designed specifically for this canal; normally of about 1300–1350 ton capacity, it has a maximum draft of 2.50 metres (8.2 ft), a length of approximately 80 metres (260 ft), and maximum beam of 9.50 metres (31.2 ft).
The Vereinigte Stahlwerke AG was a German industrial conglomerate producing coal, iron, and steel in the interbellum and during World War II.
The Secret Meeting of 20 February 1933 was a secret meeting held by Adolf Hitler and 20 to 25 industrialists at the official residence of the President of the Reichstag Hermann Göring in Berlin. Its purpose was to raise funds for the election campaign of the Nazi Party.
Aachen-Rothe Erde station is a station in the German state of North Rhine-Westphalia on the Cologne–Aachen high-speed railway. It is located in the eastern Aachen district of Rothe Erde near the districts of Frankenberg, Forst and Ostviertel. It is classified by Deutsche Bahn as a category 4 station.
Eilendorf station is a station in the German state of North Rhine-Westphalia on the Cologne–Aachen high-speed railway. It is located in the eastern Aachen district of Eilendorf near the districts of Brand, Rothe Erde and Verlautenheide.
In the industrial sector, the Luxembourg steel industry continues to occupy the first place in the country, even after the industrial reforms which have taken place since the 1960s.
The following is a timeline of the history of the city of Aachen, Germany.
Stolberg Zinc joint-stock company for mining and smelter operations in Aachen, or Stolberg Zinc Mines GmbH, is a metal mining concern in the Aachen region and specifically in the area of Eschweiler-Stolberg, with headquarters in Stolberg.
Merkers Adventure Mines are a visitor attraction in Krayenberggemeinde in the Wartburgkreis district of Thuringia, Germany, owned and operated by K+S AG of Kassel. They lie near the village of Merkers. The mines have a long history of salt extraction, and hold the record for concealing large amounts of Nazi gold during World War II. A hundred tons of gold and many works of art presumed to be stolen were discovered by the liberating United States Army in 1945.
The following is a timeline of the history of the city of Dortmund, Germany.
Carl Klönne was a German Banker.
Jürgen Kretschmann is a German economist and university president.
The area around Wiesloch, Germany, is a historical centre for mining, running between Roman times and the earlier 2000s. The area is situated on the eastern edge of the Upper Rhine Plain and contains large concentrations of carbonate-hosted lead-zinc ore deposits. Lime for cement is still actively mined in the vicinity, with most of the clay pits closed, and the last heavy metal mine operated until 1953 by Stolberger Zink. On top of the escarpment metals and lime have been mined, with clay and sand mined at the end of the valley floor where faulting has brought different layers closer to the surface.
