HistoryNeolithic (c. 9600–8000 BCE)Southeastern Turkey (Anatolia)low confidence

A 25-foot-wide, nearly 8-foot-deep pit carved into Göbekli Tepe's bedrock may have served as a cistern, while a carved channel found about 150 yards away was identified as early plumbing for collecting rainwater.

Notes on verification

Confirmed by original archaeology.org article, peer-reviewed DAI publication (Clare 2020), and independent academic review (Open Archaeology 2022), plus Wikipedia's sourced summary. Core findings (bedrock cistern, rainwater channel) well corroborated; specific dimensions/distance trace to a single journalistic source but align with underlying archaeological data. [cascade flags: wikipedia_dropped_other_sources_exist | tier=unverified indep_score=0.3 clusters=3 claim_tier=notable] [rescored 2026-09-15: curated origin-host map (PR #65); unclassified hosts no longer scored as aggregators]

Sources

A 25-foot-wide, nearly 8-foot-deep pit carved into Göbekl… · DeepInquiry