"Foreword by William Rees--It is designed to illustrate in map form the continuous story . . . from early to modern times."
The first maps are geographical, followed by the rise of civilization, the Dark Ages, the Anglo-Norman Conquest, from Conquest to the Union and Modern Wales, dating from the expansion of ancient river civilizations to a map of population density in 1851. Obviously, the maps are overviews, with gaps in time as necessary.