Frontiers of the Roman Empire: The Lower Danube Limes in Bulgaria - ??????? ?? ???????? ???????: ?????????????? ????? ? ????????

The inextricability of the connection between the Roman limes and the lands it ran through is easily observed and perfectly illustrated in Bulgaria. For a considerable distance it follows the Danube; both a major natural obstacle and at the same time a convenient communication route, it was easily defendable and facilitated control of trade routes.