Why it matters
A passage tomb where, at winter-solstice sunrise, a beam runs the full passage and lights the chamber for minutes. Deliberate, about 3200 BCE.
What mainstream says
Date and roof-box accepted; some present precision reflects 20th-century reconstruction.
Graded Grounded · A on the Ancient Code honesty scale (A grounded · C contested · S speculation · U unidentified). It belongs to the The sky line of evidence.
Sources & further reading
The authoritative reference for this site/finding — and its own primary citations — so you can check us.