A theory explained by Howard Crowhurst (ACEM, Association for the Knowledge and Study of Megaliths, in France) claims that the monument is connected with the summer solstice and lunar standstill.

"[4]In 1989, during the first archaeological excavations performed in order to scientifically investigate and date the monument, archaeologists found a decorated clay pot with burned human bones inside the ship setting.

[5] The archaeologists working on the project also found birch charcoal remains from 540 to 650 CE underneath an undisturbed boulder.

The diverging sample came from soot-covered stones that are believed to be the remnants of an older hearth, found close to the ship setting.

[6] On the basis of these results, the Swedish National Heritage Board has set a suggested date of creation for Ale's Stones to 1,400 BP, which is the year 550 CE.