Chapter 6 completes the theme of the European Mythology of the Indies (III) and analyzes the impact of Enlightenment thought (French and British) on interpretations of Native Americans and Pacific Islanders. The chapter explores myths of primitivism and progress, showing how appeals to scientific authority grew at the expense of reference to biblical texts. It then examines the impact of the scientific voyages of Bougainville and Cook. On the one hand, the manner and customs of some of the South Seas peoples evoked the same kind of comparisons with classical antiquity as had been made in the Americas, especially the Golden Age of Antiquity, and appeared to offer confirmation of the myth of humankind in its infancy. So it was not just the Polynesians who interpreted the first Europeans in terms of their own myths; the same was true vice versa. On the other hand, the “enlightened” scientific expedition produced new data on non-European peoples which laid the foundations for rethinking theories of development of humankind, whether through progress or degeneration. Increasingly towards the end of the eighteenth century, notions of race became more salient in how non-European peoples were understood.