The major tenets of Piagetian theory, such as adaptation and constructionism, are compatible with a cross-cultural approach to the study of cognitive development, but there have been significant methodological and theoretical advances over the past 40 years. Piagetian theory directly influenced three phases of cross-cultural research, ranging from absolutist to relativist. As researchers incorporated the study of contexts of development, particularly cross-cultural contexts, new methods expanded the available toolbox of approaches. Recent directions in historical research, narrative and discourse research, and cognitive developmental neuroscience have helped to shed light on processes and mechanisms of developmental change and their relationship to culture.