A volcanic eruption in 2910 B.C. may be the reason Neolithic people on a small island in the Baltic Sea buried hundreds of stones decorated with plant and sun imagery, archaeologists suggest in a new study.
"We have known for a long time that the sun was the focal point for the early agricultural cultures we know of in Northern Europe," Rune Iversen, an archaeologist at the University of Copenhagen, said in a statement. These stones "were probably sacrificed to ensure sun and growth."
