Between 2013 and 2018, archaeologists excavating the site of Vasagård West on the Danish island of Bornholm discovered a total of 614 flat shale pieces engraved with sun motifs and other images ...

There are sun motifs, which have many varieties but usually include, as the study authors put it, “incised lines (rays), including concentric circles, emanating from a circular central motif ...

Around 4,900 years ago, Neolithic people on Bornholm, Denmark, sacrificed stones with sun motifs, coinciding with a volcanic eruption that obscured the sun in Northern Europe.