What political ideology did Mussolini found?

Mussolini founded Fascism, a political ideology characterized by authoritarian nationalism and a strong centralized government. It emphasizes the need for a unified national identity, often at the expense of individual freedoms and democratic processes. Fascism seeks to create a strong state led by a dictatorial leader, with the belief that the state's power is paramount over individual rights.

Fascism stands apart from other ideologies listed in the question. Socialism focuses on social ownership and democratic control of the means of production, while communism aims for a classless and stateless society through the abolition of private property. Liberalism, on the other hand, values individual freedoms, democratic governance, and the protection of civil liberties. Mussolini's ideologies were in direct opposition to these concepts, showcasing how Fascism is distinct in its principles and governance style.