Anarchism challenges the legitimacy of state power and advocates for a society based on voluntary association and mutual aid. This political philosophy rejects hierarchical authority, emphasizing individual liberty and direct democracy while opposing capitalism, racism, and other forms of domination. Emerging in the 19th century, anarchism was influenced by Enlightenment ideas and socialist movements. Key thinkers like Kropotkin, Goldman, and Bookchin developed theories on anarcho-communism, feminism, and social ecology. Anarchist principles have been applied in various historical contexts, from the Spanish Revolution to modern movements.