During the Age of Enlightenment (18th century), the importance of science and research increased sharply. Confidence in human understanding and logical reasoning was given shape in liberalism. The German philosopher Kant and the evolution theory of Darwin, among other scientific theories in the 19th century, had an exceptionally strong influence and were a major step in the development of humanism in the Netherlands. Ludwig Feuerbach called religion a creation of the human mind. The modern organized humanist movement began in the Netherlands in the mid-nineteenth century with the establishment of freethinkers association "De Dageraad" (Dawn). The members, including writer Multatuli and later Anton Constandse.