Proper noun
Neolithic Revolution
(archaeology) the discovery of agriculture
Due to these factors, the practice of slavery would have only proliferated after the invention of agriculture during the Neolithic Revolution about 11,000 years ago. citation In the earliest known records, slavery is treated as an established institution. Source: Internet
However, the Neolithic Revolution in Brittany did not happen due to a radical change of population, but by slow immigration and exchange of skills. Source: Internet
That would be after the fully-formed Neolithic revolution which saw sedentary lifestyles, the emergence of agriculture, and people just generally being more permanent. Source: Internet