DüsseldorfDüsseldorf (ˈdʊsəldɔːrf , USˈdjuːs- ; ˈdʏsl̩dɔʁf; often in English sources; Low Franconian and Ripuarian: Düsseldörp ˈdɵsəldœʀ(ə)p; archaic Dusseldorp ˈdʏsəlˌdɔr(ə)p) is the capital city of North Rhine-Westphalia, the most populous state of Germany. It is the second-largest city in the state after Cologne, and the sixth-largest city in Germany, with a population of 653,253. Düsseldorf is located at the mouth of the Düssel into the Rhine.
RhinelandThe Rhineland (Rheinland; Rhénanie; Rijnland; Rhingland; Latinised name: Rhenania) is a loosely defined area of Western Germany along the Rhine, chiefly its middle section. Historically, the term "Rhinelands" refers (physically speaking) to a loosely defined region embracing the land on the banks of the Rhine in Central Europe, which were settled by Ripuarian and Salian Franks and became part of Frankish Austrasia. In the High Middle Ages, numerous Imperial States along the river emerged from the former stem duchy of Lotharingia, without developing any common political or cultural identity.
RuhrThe Ruhr ('rʊər ; Ruhrgebiet ˈʁuːɐ̯ɡəˌbiːt, also Ruhrpott ˈʁuːɐ̯pɔt), also referred to as the Ruhr area, sometimes Ruhr district, Ruhr region, or Ruhr valley, is a polycentric urban area in North Rhine-Westphalia, Germany. With a population density of 2,800/km2 and a population of over 5 million (2017), it is the largest urban area in Germany. It consists of several large cities bordered by the rivers Ruhr to the south, Rhine to the west, and Lippe to the north. In the southwest it borders the Bergisches Land.
EssenEssen (ˈɛsn̩; Latin: Assindia) is the central and, after Dortmund, second-largest city of the Ruhr, the largest urban area in Germany. Its population of makes it the fourth-largest city of North Rhine-Westphalia after Cologne, Düsseldorf and Dortmund, as well as the ninth-largest city of Germany. Essen lies in the larger Rhine-Ruhr Metropolitan Region and is part of the cultural area of Rhineland. Because of its central location in the Ruhr, Essen is often regarded as the Ruhr's "secret capital".
Industrial RevolutionThe Industrial Revolution, also known as the First Industrial Revolution, was a period of global transition of human economy towards more efficient and stable manufacturing processes that succeeded the Agricultural Revolution, starting from Great Britain, continental Europe, and the United States, that occurred during the period from around 1760 to about 1820–1840. This transition included going from hand production methods to machines; new chemical manufacturing and iron production processes; the increasing use of water power and steam power; the development of machine tools; and the rise of the mechanized factory system.