It was traditionally assumed that having a single official language was a necessary condition for the wellbeing of the state, particularly in France and Britain. This assumption is now questioned, and the regional languages are making, in some cases, an impressive comeback. It is the story of their decline, their survival and, more recently their efforts to re-establish themselves as effective tools of normal communication which is tackled in this book. Each language is analyzed in terms of its development from the earliest times, through its period of decline to present-day efforts at regeneration.