The diverse peoples of Britain and Ireland are revealed not only by physical characteristics but also through structures and settlements, place names and dialects. Using the latest genetic and archaeological research, the author shows how different peoples traded, settled and conquered, establishing the `tribal` and regional roots still apparent today. Its vast scope considers the impact of prehistoric peoples and Celtic tribes, Romans and Vikings, Saxons and Normans, Jews and Huguenots, as well as the increasing population movements of the last century.