Link: Danish archaeologists propose Late Neolithic volcanic eruption turned the skies dark over northern Europe
The date 2900BC crops up regularly in connection with changes in Neolithic Orkney.
Now archaeologists and climate scientists from the University of Copenhagen have proposed that events on the Danish island of Bornholm – particularly the deposition of incised stones – coincided with a large volcanic eruption around 2900BC “that made the sun disappear throughout Northern Europe”.
