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According to genetic studies: possibly yes. Proposed cause: the eruption of a super-volcano. Details: https://en.wikipedia.org/wiki/Population_bottleneck#Toba_catastrophe_theory * Basically: the genetic study indicates that the entire population of H sapiens was no more than 30,000 people about 75,000 years ago. However: there is contrary evidence, and the theory remains in doubt.
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