From 1920 to 1921 the League of Nations and the International Labour Office established their headquarters in Geneva. In 1924 the International School of Geneva was founded by senior members of these two international organizations, most notably Arthur Sweetser and Ludwik Rajchman, in partnership with Adolphe Ferrière and Paul Meyhoffer, educators from Geneva's "Institut Jean-Jacques Rousseau". Meyhoffer, originally trained as a theologian, had previously taught at Bedales School in England and, for eight years, at the "Ecole Nouvelle de la Châtaigneraie" (also known as "Ecole Nouvelle du Léman"), which in 1974 was integrated into Ecolint.