Socialism is an economic and political system that advocates for public rather than private ownership of industry and services.
Communism
Communism advocates for a system in which there is no state and a classless, moneyless society, in which the means of production are communally owned. Socialism emerged as a revolutionary movement in the early 19th century with the emergence of industrial capitalism. Its roots go back to earlier concepts of utopianism and communal living dating back to the late-eighteenth century.