Socialism is a political, economic, and social theory that advocates collective or social ownership of the means of production, distribution, and exchange. It emerged as a response to the inequalities and exploitation associated with industrial capitalism, particularly during the nineteenth century. At its core, socialism seeks to promote social justice, equality, and cooperation by reducing class divisions and ensuring that wealth and resources are used for the common good rather than private profit. In political theory, socialism emphasizes the idea that society should be organized to meet human needs rather than maximize market efficiency. It critiques