The spread of Europe’s giant stone monuments may trace back to one region
Ancient sea travelers carried the knowledge of how to build megaliths from France
![stone megalith in Sardinia](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2019/02/021119_BB_megalith_feat.jpg?fit=860%2C460&ssl=1)
ROCK ON Huge stone structures found throughout Europe spread out in three waves starting as early as 6,800 years ago, a new study finds. This stone grave on Sardinia in Italy dates to around 5,000 years ago.
B. Schulz Paulsson