The Romans were able to politically unite the Mediterranean Basin, and across most of Europe under their control, even beyond said basin, their culture and language were predominant.
Could anyone have done similar in Northern Europe at any point history? With the North and/or Baltic Seas serving as their Mare Nostrum?
Culturally, it would likely be a Germanic society of some sort, since most of the region in question is or was at some point Germanic. At the same time, the plain itself is a pretty vulnerable place from which to build an empire. Britain and/or Scandinavia are outside the plain, but well positioned nearby.
Could anyone have done similar in Northern Europe at any point history? With the North and/or Baltic Seas serving as their Mare Nostrum?
Culturally, it would likely be a Germanic society of some sort, since most of the region in question is or was at some point Germanic. At the same time, the plain itself is a pretty vulnerable place from which to build an empire. Britain and/or Scandinavia are outside the plain, but well positioned nearby.