Knowth — the largest of Brú na Bóinne’s three main passage tombs, with 19 satellite cairns — contains about one-third of Western Europe’s megalithic art.
The video presents a stone as a proposed “calendar stone”: Martin Brennan interpreted its 22 crescent motifs and seven circles (29 total) as roughly approximating the 29.53-day lunar synodic month. The video argues that three crescents associated with a spiral may mark the new moon’s invisibility and attributes to Charles Scribbler the claim that Knowth’s passages track lunar phases at the equinoxes to predict future phases.
The video also reports an equinox sunset beam striking only the left wall of the western passage, which is oriented about 11° south of due west. These lunar-calendar and phase-tracking ideas are interpretations presented in the video, not established facts.
Sources
mythicalireland.comLinked in video description
megalithomania.co.ukLinked in video description
Knowth Passage Tomb | Brú na Bóinne, County Meath ...knowth.comKnowth is the largest of the three great passage tombs at Brú na Bóinne, standing with Newgrange and Dowth at the centre of one of only two UNESCO World ...
Boyne Valley Megalithic Passage Tombs, Irelandknowth.comKnowth has two passages and is surrounded by 19 satellite cairns. Knowth is open to the public however there is no public access to the interior passages and ...
Knowth tour | Private day tour from Dublinboynevalleytours.comKnowth is the largest passage tomb of the Brú na Bóinne complex. The site consists of a large mound (known as Site 1) and 19 smaller satellite tombs. The ...
Knowththemodernantiquarian.com31/03/2023 – Knowth Neolithic passage grave. Great site, big mound with 17 smaller satellite tombs surrounding it. I really liked this place. Top Site. Only ...
George Eogan - Excavations at Knowthknowth.comKnowth with its 19 satellite tombs, each one a major monument in its own right, now stands beside Newgrange in its vast impressiveness. Another huge but less ...
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