Originally Posted by CUP Encyclopedia

In modern usage, the term Communism (written with a capital C) is applied to the movement that aims to overthrow the capitalist order by revolutionary means and to establish a classless society in which all goods will be socially owned. The theories of the movement come from Karl Marx, as modified by Vladimir Ilyich Lenin, leader of the successful Communist revolution in Russia. Communism, in this sense, is to be distinguished from socialism, which (as the term is commonly understood) seeks similar ends but by evolution rather than revolution.