Koblenz vs Dayton

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Koblenz (German: [ˈkoːblɛnts] (listen); French: Coblence), spelled Coblenz before 1926, is a German city on the banks of the Rhine and of the Moselle, a multi-nation tributary. Koblenz was established as a Roman military post by Drusus around 8 B.C. Its name originates from the Latin (ad) cōnfluentēs, meaning "(at the) confluence". The actual confluence is today known as the "German Corner", a symbol of the unification of Germany that features an equestrian statue of Emperor William I.

The city celebrated its 2000th anniversary in 1992. It ranks in population behind Mainz and Ludwigshafen am Rhein to be the third-largest city in Rhineland-Palatinate. Its usual-residents' population is 112,000 (as at 2015). Koblenz lies in a narrow flood plain between high hill ranges, some reaching mountainous height, and is served by an express rail and autobahn network. It is part of the populous Rhineland.

Source: Wikipedia

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Dayton () is the sixth-largest city in the state of Ohio and the county seat of Montgomery County. A small part of the city extends into Greene County. The 2019 U.S. census estimate put the city population at 140,407, while Greater Dayton was estimated to be at 803,416 residents. This makes Dayton the fourth-largest metropolitan area in Ohio and 63rd in the United States. Dayton is within Ohio's Miami Valley region, just north of Greater Cincinnati. Ohio's borders are within 500 miles (800 km) of roughly 60 percent of the country's population and manufacturing infrastructure, making the Dayton area a logistical centroid for manufacturers, suppliers, and shippers. Dayton also hosts significant research and development in fields like industrial, aeronautical, and astronautical engineering that have led to many technological innovations. Much of this innovation is due in part to Wright-Patterson Air Force Base and its place in the community. With the decline of heavy manufacturing, Dayton's businesses have diversified into a service economy that includes insurance and legal sectors as well as healthcare and government sectors. Along with defense and aerospace, healthcare accounts for much of the Dayton area's economy. Hospitals in the Greater Dayton area have an estimated combined employment of nearly 32,000 and a yearly economic impact of $6.

8 billion. It is estimated that Premier Health Partners, a hospital network, contributes more than $2 billion a year to the region through operating, employment, and capital expenditures. In 2011, Dayton was rated the #3 city in the nation by HealthGrades for excellence in healthcare.Dayton is also noted for its association with aviation; the city is home to the National Museum of the United States Air Force and is the birthplace of Orville Wright. Other well-known individuals born in the city include poet Paul Laurence Dunbar and entrepreneur John H. Patterson. Dayton is also known for its many patents, inventions, and inventors, most notably the Wright brothers' invention of powered flight. In 2007 Dayton was a part of the top 100 cities in America. In 2008, 2009, and 2010, Site Selection magazine ranked Dayton the #1 mid-sized metropolitan area in the nation for economic development. Also in 2010, Dayton was named one of the best places in the United States for college graduates to find a job.On Memorial Day of 2019 Dayton was affected by a tornado outbreak, in which a total of 15 tornadoes touched down in the Dayton area. One was a half-mile wide EF4 that tore through the heart of the city causing damage.

Source: Wikipedia