Archaeological studies date human colonization of North America by the Clovis culture to more than 13,000 years ago.
Notes on verification
Confirmed by multiple independent sources including peer-reviewed Science Advances paper, HHMI, and Wikipedia, all consistent with ~13,000+ year dating for Clovis culture. [cascade flags: wikipedia_dropped_other_sources_exist | tier=silver indep_score=0.925 clusters=2 claim_tier=notable]
Sources
- New Study Refutes Theory of How Humans Populated North America | HISTORY (seed:history_and_archaeology)
- https://www.hhmi.org/news/clovis-people-spread-central-and-south-america-then-vanished (corroboration)
- https://www.science.org/doi/10.1126/sciadv.aaz0455 (corroboration)