Giambattista Vico (1668–1744) has been one of the most innovative and influential thinkers in the history of human and social sciences. Although psychology sometimes underestimates his contribution, Vico was the first scholar to develop a systematic view of the relationship between mind and culture. This chapter presents his ideas about the co-development of psychological and cultural processes and about the philosophical view of individual and collective agency. I show how Vico’s “new science” about human facts will directly influence the birth of social and cultural psychology, through his reception, for instance, by Wilhelm Wundt and Carlo Cattaneo. The intellectual project that Vico pursued all his life was to develop a specific theory ...