The global increase in life expectancy brings about the reshaping of relations between the generations. Corresponding debates as well as social, institutional, temporal and spatial practices are the result and basis of longer-term processes of transformation that produce specific demographic structures; also in Africa and Asia. Without ignoring the studies on youth, the focus of this research unit strengthens the historical perspective as well as the ongoing research on middle aged and the elderly. The unit seeks to understand how state as well as civil society organizations influenced contextual conceptions of age and generation and resulting practices. It studies how the reorganization of intergenerational relationships transforms socio-spatial practices triggered by rapid urbanization, infrastructure development and migration. How does this affect debates on intergenerational justice? Can we identify context-dependent concepts of ‘correct’ coming of age through the study of transforming intergenerational relationships?