Major transformations in human society include the domestication revolution, agricultural revolution, industrial revolution, and information revolution. The domestication of plants and animals led to dependable food supplies and larger, more socially stratified societies. The agricultural revolution introduced plows and farming technologies, resulting in further increased food surpluses, division of labor, elite control of resources, and the development of states. The industrial revolution brought machines powered by fuels, factories, population shifts to cities, and greater inequality between the wealthy capitalists and the working class. The information revolution is shifting society toward information, services, technology, and the long-term impacts are still emerging.