The Northern Seas (fifth to eighth centuries)
Stéphane Lebecq
Since the end of third century, communications in northern seaways, especially between British Isles and European continent, had been interrupted by maritime migrations concomitant piracy. This was to be rampant for two or three centuries, even though an important part these movements undertaken controlled Roman Empire itself purpose its coastal defence. The beginning seventh century saw increase port activity that affected not only old cities, such as Nantes, London Rouen, but above all new sites, which generally promised a great future. whirlwind reached Northern Seas from around 600 influence on whole West because, throughout eighth there progressive integration area with more distant hinterland.
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