Toba catastrophe theory
(noun)
The theory that there was a near-extinction event for early humans about 70,000 years ago.
Examples of Toba catastrophe theory in the following topics:
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The Evolution of Humans
- The Toba catastrophe theory states that there was a near-extinction event for early humans about 70,000 years ago.
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The Decline and Fall of the Roman Empire
- The various theories and explanations for the fall of the Roman Empire in the West may be very broadly classified into four schools of thought, although the classification is not without overlap:
- On the other hand, the school of catastrophic collapse holds that the fall of the Empire had not been a pre-determined event and need not be taken for granted.