Humans and North American megafauna coexisted in the northeastern United States for approximately 1,000 years.
Notes on verification
Corroborated by peer-reviewed study (Boulanger & Lyman 2014, Quaternary Science Reviews) and independently reported by Science.org (AAAS), both citing the same ~1000-year coexistence window before megafauna extinction. [tier=silver indep_score=0.77 clusters=2 claim_tier=notable]
Sources
- News - Was It Climate Change or the “Overkill Hypothesis”? - Archaeology Magazine (seed:history_and_archaeology)
- https://www.science.org/content/article/what-killed-great-beasts-north-america (corroboration)
- https://www.sciencedirect.com/science/article/abs/pii/S0277379113004678 (corroboration)