Newgrange: Ancient Astronomy or Lost Knowledge?

Deep in Ireland stands Newgrange, an ancient monument built with astonishing precision.
Every year during the winter solstice, sunlight enters its passage and illuminates the inner chamber for a few brief minutes.
How did ancient builders achieve such an extraordinary alignment without modern instruments?
Could Newgrange preserve evidence that ancient civilizations understood the cosmos far better than we realize?

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Видео Newgrange: Ancient Astronomy or Lost Knowledge? канала PyramidCoin