An analysis of the provenance of the Matarrubilla stone, a large megalith at Valencina in Spain, indicates that the monument’s builders must have had advanced seafaring technology
Več na: https://www.newscientist.com/article/2486785-prehistoric-spanish-people-transported-2-tonne-stone-by-boat/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home
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