Why it matters
A local Neolithic people raised the oldest free-standing stone buildings on Earth, with no metal, wheel or draft animals — then vanished.
What mainstream says
Fully accepted; debates are only over function and the culture's sudden collapse.
Graded Grounded · A on the Ancient Code honesty scale (A grounded · C contested · S speculation · U unidentified). It belongs to the Impossible stone line of evidence.
Sources & further reading
The authoritative reference for this site/finding — and its own primary citations — so you can check us.