The document summarizes the agricultural revolution that occurred between 8,000-5,000 BCE. It began independently in different parts of the world as nomadic hunter-gatherer societies transitioned to more settled agricultural lifestyles due to climate change and scarce resources. The Fertile Crescent was an early region of domestication of plants like wheat and barley and animals like sheep and goats. Early farming societies had advantages of steady food and larger populations but also risks of disease and dependence on certain crops. New technologies and social structures varying from pastoral to village societies to chiefdoms emerged during this period of human development.