The Neolithic revolution occurred 10,000 BC. Humans began to cultivate crops and domesticate certain animals. The change from hunting & gathering to agriculture led to permanent settlements, the establishment of social classes, and eventually civilizations.
The industrial revolution occurred in the 18th century. People started using machines for farming instead of doing it themselves.
It occurred in the 1940´s. It provided many ways to produce higher yields of crop and has provided many methods that make preparing and maintaining the land a lot easier.