Charles Jean de la Vallée Poussin
Charles-Jean Étienne Gustave Nicolas, baron de la Vallée Poussin was a Belgian mathematician. He is best known for proving the prime number theorem.
Poussin, c. 1900
Catholic University of Leuven (1834–1968)
The Catholic University of Leuven or Louvain was founded in 1834 in Mechelen as the Catholic University of Belgium, and moved its seat to the town of Leuven in 1835, changing its name to Catholic University of Leuven. In 1968, it was split into two universities, the Katholieke Universiteit Leuven and the Université catholique de Louvain, following tensions between the Dutch and French-speaking student bodies.
Pope Gregory XVI, co-founder in 1834 with the bishops of Belgium of the Catholic University of Malines, which would later become the Catholic University of Leuven
Castle Arenberg, part of the university
Book celebrating the 25 anniversary of the founding of the Catholic University of Louvain, November 3, 1859.
The ruins of the Catholic University of Leuven's library after it was burned by the German army in 1914