The University of Bonn is a public research university located in Bonn, Germany. Founded in its present form in 1818, as the linear successor of earlier academic institutions, the University of Bonn is today one of the leading universities in Germany. The University of Bonn offers a large number of undergraduate and graduate programs in a range of subjects. Its library holds more than five million volumes. The University of Bonn has 544 professors and 32,500 students. Among its notable alumni and faculty are seven Nobel Laureates, three Fields Medalist, twelve Gottfried Wilhelm Leibniz Prize winners, Prince Albert, Pope Benedict XVI, Frederick III, Karl Marx, Heinrich Heine, Friedrich Nietzsche, Konrad Adenauer, and Joseph Schumpeter. The Times Higher Education World University Rankings 2016 and the Academic Ranking of World Universities 2015 ranked the University of Bonn as one of the 100 best universities in the world.