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Unraveling mysteries of Serpent Mound. Ohio's ancient snake-shaped enigma with possible astronomical purposeThis implies that the Fort culture ... the Serpent Mound served an astronomical purpose, although we're still unsure who built it. Read also: Four times larger than Europe. An ancient tectonic ...
The Serpent Mound, which snakes in earthen coils for ... Later, it was credited to the Fort Ancient culture, which followed Hopewell, thanks to the carbon dating of some artifacts.
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