From the mid-1990s to about the year 2000, the Humanist Historical Centre interviewed a number of well-known and less well-known humanists about their lives and their role in the humanist movement from 1945 onwards. People from the freethinking association De Vrije Gedachte (formerly De Dageraad) and the ‘Jongeren Vredes Actie’ (Young Peace Action) are also interviewed. They are important precursors of the modern post-war humanist movement.