The legend of Wales' Atlantis has long been considered myth, but is there some truth to it?
The map is held in the collections of the Bodleian Library at Oxford University.
"It describes Gwyddno Garanhir's country called Maes Gwyddno . It was flooded because the well-keeper left the cover off the well."Drawing upon previous surveys of the bay and understanding of the advance and retreat of glaciers and silt since the last ice age about 10,000 years ago, Profs Haslett and Willis were able to suggest how the islands may have come into existence and then disappeared again.
He added folk legends of being able to walk between lands now separated by sea could be a folk memory stemming from rising sea levels after the last ice age. "The erosion of any islands here would have released boulders that are likely to have contributed to the accumulation of the distinctive stone structures known locally as sarns."'Re-enchanting the land'
"I call it re-enchanting the land, the romanticists amongst the Celtic population want to find meaning and a belief system to make sense of the current hardships."
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