Leuven is in the middle leaning north, in a Dutch speaking area. But because the politics and economy of Belgium were earlier dominated by French speakers and because Leuven was the greatest university in the land, instruction was given in French. Most courses did not start to adopt both French and Dutch until 1936.
魯汶市位於中間偏北地帶，屬荷語區，但因早期比國政經皆由瓦隆人主導，魯汶既為比國最重要的高等學府，授課也採法語，直至一九三六年，大部分課程才同時使用法語與荷蘭語。