Allows the user to trace the developments in one region of the world through time, or compare the nature of different civilisations in any given period. Each map is accompanied by an informative essay on the region and period. In addition, each regional map includes keys to geographical, political, and social details (cities, battle sites, borders, and migrations of population etc.), as well as numbered pointers that further elucidate major historical events and themes embodied in the map.