The drift of nearly all publications on the history of Dutch FLT is that the impact of the European Reform Movement (c1880-1910) was insignificant. However, the question is on what information this notion is based. From the comments of a number of persons who published their ideas during the 1930s - some 25 years after the Reform debate had fallen silent - it appears that their knowledge of the historical facts was small. And it seems that the comments of later critics are not based on proper research either. The question is if there was anything like a Dutch Reform Movement and, if so, in how far it was influenced by other European countries. Whoever wants to study the impact of the European Reform Movement on Dutch FLT should make systematic use of certain historical sources. This paper proposes four types of sources with which to address the research question. The paper first gives a brief sketch of the principles of the international Reform Movement. Next, it presents a picture of Dutch FLT around 1880. Finally, it describes the Dutch Reform in detail with the help of the aforementioned four types of sources. In the concluding paragraph I present my characteristic of the Movement in the Netherlands. ; Presque toutes les publications concernant l’histoire de l’enseignement des langues étrangères aux Pays-Bas ont tendance à constater que l’influence du Mouvement européen de Réforme (1880- 1920) a été sans importance. Seulement, la question est de savoir comment les auteurs arrivent à cette conclusion. Les commentaires de certains auteurs ayant publié leurs idées pendant les années 1930 – quelque 25 ans après la fin des discussions sur la Réforme - prouvent que leurs connaissances des faits historiques étaient insuffisantes. Les publications ultérieures ne sont pas non plus basées sur des recherches adéquates. La question est de savoir s’il y a eu vraiment un Mouvement de Réforme aux-Pays-Bas et si ce mouvement a été influencé par d’autres pays européens. Quand on étudie l’inluence de la Réforme de ...