The University of Duisburg-Essen () is a public research university in North Rhine-Westphalia, Germany. In the 2019 Times Higher Education World University Rankings, the university was awarded 194th place in the world. It was originally founded in 1654 and re-established on 1 January 2003, as a merger of the Gerhard Mercator University of Duisburg and the university of Essen. It is based in both the cities of Duisburg and Essen, and a part of University Alliance Metropolis Ruhr. With its 12 departments and around 40,000 students, the University of Duisburg-Essen is among the 10 largest German universities. Since 2014, research income has risen by 150 percent. Natural science and engineering are ranked within the top 10 in Germany, and the humanities are within the top 20 to 30. Especially, the physics field is ranked in the top 1 in Germany. History Origins: University of Duisburg (1555) The university's origins date back to the 1555 decision of Duke Wilhelm V von Jülich-Kleve-Berg, to create a university for the unified duchies at the Lower Rhine. To this end, it was necessary to obtain a permission of the emperor and the pope. Although the permission of the pope was granted in 1564 and of the emperor in 1566, the university was founded about ninety years later in 1654, after the acquisition of the Duchy of Cleves by Frederick William, Elector of Brandenburg. It opened on 14 October 1655 by Johannes Claudberg as their first rector. The university had four faculties: Theology, Medicine, Law and Arts. During its period of activity it was one of the central and leading universities of the western provinces of Prussia. Only a few decades later the university was in competition with the much better equipped Dutch universities. Since only about one third of the population in the western provinces of Prussia were member of The Reformed Church, most Lutheran and Catholic citizens in the second half of the 18th century sent their sons to other universities. The university declined rapidly and was closed on 18 October 1818, due to a Cabinet Order of Friedrich Wilhelm III. At the same time, the University of Bonn was founded. Large parts of the Duisburg University Library were relocated to Bonn and formed the basis of the newly formed Bonn Library. The sceptre of the University of Duisburg was given to the University of Bonn, where it is still located today. In