Fimbulwinter and the Climate Catastrophe of the Migration Period

When the sun suddenly darkened over Europe in 536, the continent approached the end of an extremely violent and devastating epoch: the Migration Period. The seemingly never-ending migrations and wars of Germanic tribes had destroyed the Western Roman Empire and its culture and changed the map of Europe forever. The Visigoths, Suebians, and Franks had divided the western provinces of the Empire among themselves; the northern part, the provinces of Britain, had been annexed by North Sea Germanic groups led by the Angles and Saxons.