The story of the migration of the Cornish people throughout the world is epic in scope. The migration took place in two great waves: the first, shrouded in mystery, took place somewhere between the fourth and sixth centuries, and scattered the Cornish throughout present-day Brittany; the second, taking place in the nineteenth and twentieth centuries, spread the Cornish across the world. The Cornish Overseas tells this grand narrative of diaspora covering the United States, Canada, Australia, New Zealand, South Africa, continental South America, and elsewhere, while incorporating significant new research.