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 two million volumes. The University of Bonn has 525 professors and 31,000 students. Among its notable alumni and faculty are seven Nobel Laureates, two Fields Medalists, twelve Gottfried Wilhelm Leibniz Prize winners, Prince Albert, Pope Benedict XVI, Frederick III, Karl Marx, Heinrich Heine, Friedrich Nietzsche, Konrad Adenauer, and Joseph Schumpeter. In the years 2010, 2011 and 2013, the Times Higher Education ranked the University of Bonn as one of the 200 best universities in the world. The University of Bonn is ranked 94th worldwide according to the ARWU University ranking.