Niede Guidon was a pioneering Brazilian archaeologist who questioned the Clovis-first hypothesis regarding early human migration to the Americas. This theory proposed that humans arrived around 11,500 years ago, but Guidon's findings in Piaui suggested human occupation over 30,000 years ago. Her research, including cave paintings and archaeological sites, sparked significant debate within the scientific community. Despite hardships, including persecution during Brazil's military dictatorship, Guidon's work led to a crucial reevaluation of human history in the Americas. She passed away at the age of 92, leaving behind a lasting legacy in archaeology.
Her research prompted a seismic shift in the understanding of human migration to the Americas, challenging the Clovis-first theory with evidence of occupation over 30,000 years ago.
Niede Guidon's work led to the discovery of 55 archaeological sites in Piaui, which she attributed to human activity, indicating a much earlier human presence in Brazil.
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