1 янв 9980 г. до нашей эры - Agricultural revolution

Описание:

 The change in climate brought on by the refreezing of the ice caps and the 1,000-year drought was catastrophic for hunger-gatherer societies.’

 Rather than relying on primarily hunting or gathering food, many societies created systems for producing food.

 People moved from small camp sites and they grouped together and moved to larger, denser and more permanent settlements.

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