HistoryPrehistoric (c. 13,000 years ago)North Americalow confidence

The Clovis culture was one of the earliest archaeological cultures to extend throughout North America.

Notes on verification

Well-corroborated by multiple independent, reputable sources including Wikipedia, Britannica, Smithsonian, and academic/genetic research. Claim is carefully phrased as 'one of the earliest' rather than 'the first,' avoiding conflict with newer evidence of pre-Clovis sites like Monte Verde. [cascade flags: aggregator_dropped_primary_exists,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