The document summarizes the history of agriculture in three revolutions. The first agricultural revolution began around 10,000 BCE as hunter-gatherer societies in various regions began deliberately cultivating plants and domesticating animals. This led to more permanent settlements and stratified social classes. The second agricultural revolution in the late Middle Ages involved innovations like crop rotation, selective breeding, and mechanization that increased food production and allowed commercial farming. The third agricultural revolution from the 1940s onward saw the introduction of technologies like biotechnology, genetically modified crops, and irrigation systems that further boosted global food supplies.
