The boundaries of Germania are not clearly defined, particularly at its northern and eastern fringes. Magna Germania stretched approximately from the Rhine in the west to beyond the Vistula river in the east, and from the Danube in the south and northwards along the North and Baltic seas, including Scandinavia.. "Germanic-speaking groups dominated most of central and northern Europe beyond Rome's riverine frontiers. The Germani, as the Romans called them, spread all the way from the Rhine in the west (which, before the Roman conquest, had marked an approximate boundary between Europe's Germanic and Celtic speakers) to beyond the River Vistula in the east, and from the Danube in the south to the North and Baltic Seas.". "In recent decades, a vast amount of new information has been discovered and published about the peoples and cultures of the region, both inside the empire (in Germania Superior, Germania Inferior, and other nearby provinces) and beyond the imperial frontiers in Germania Magna ('Great Germany' or central European Barbaricum). This vast and (especially to the east and north) ill-defined and fluid region spanned what today comprises multiple modern countries from the Netherlands to Poland, and from Scandinavia to the Danube...". "Germania, an area, roughly speaking, between the oceans in the north and the Danube in the south, the Rhine in the west and the Vistula in the east. This ancient Germania also included Scandinavia, which was considered to be an island in the Baltic Sea.". "What the Romans knew as Germania was the area between the Rhine and the Danube, extending possibly as far as the Vistula, and including in north Denmark and the southern parts of Norway and Sweden." Germania Superior encompassed parts of modern-day Switzerland, southwest Germany and eastern France, while Germania Inferior encompassed much of modern-day Belgium and Netherlands.
