The Université catholique de Louvain, sometimes known, especially in Belgium, as UCL, is Belgium's largest French-speaking university. It is located in Louvain-la-Neuve and in Brussels. It split from the Catholic University of Leuven, Belgium's oldest university, in 1968, the Dutch half staying in Leuven under the name Katholieke Universiteit Leuven. The Catholic University of Leuven, based in Leuven ("Louvain" in French), 30 km east of Brussels, provided lectures in French from its refounding in 1835, and in Dutch from 1930. In 1968 the Dutch-language section became an independent Katholieke Universiteit Leuven, which remained in Leuven, while the French-speaking university was moved to a greenfield campus, Louvain-la-Neuve, 20 km south-east of Brussels, in a part of the country where French is the official language. This separation also entailed dividing existing library holdings between the two new universities.