A society is a group of people who interact and live together in an organized community, subject to common political and cultural structures. Societies are characterized by patterns of social relationships and interactions between members who share a culture. More broadly, a society comprises the economic, social, and political institutions that make up the infrastructure supporting a group of individuals, who can come from different ethnic groups. Throughout history, societies have been organized based on their primary means of subsistence, ranging from hunter-gatherer to pastoral, horticultural, agricultural, industrial, and post-industrial.