Johann Hendrik Gallée, 1911 Encyclopædia Britannica, Volume 8… (1911)
“ The obtrusion of the French language during the reign of Napoleon had no effect. But the subsequent union of Holland and Belgium strengthened the French element, especially in the higher ranks of society. King William I. had tried to make Dutch more popular in Belgium by a general teaching of the Dutch language. When north and south were separated, the French became predominant in the south. Only in the Flemish provinces of Belgium the people tried to preserve the native idiom and to do away with French words. ”
