This book is the product of Donald Akenson's decades of research and writing on Irish social history and its relationship to the Irish diaspora - it is also the product of a lifetime of trying to figure out where Swedish-America actually came from, and why. These two matters, Akenson shows, are intimately related. Ireland and Sweden each provide a tight case study of a larger phenomenon, one that, for better or worse, shaped the modern world: the Great European Diaspora of the "true" nineteenth century.