The Spanish radical Right, that is to say, the anti-liberal, monarchic and authoritarian political and social alternative that was born at the beginning of the 20th century, has its antecedents in the anti-liberal proposals of the Catholic Church throughout the 19th century against the nascent liberalism. The National Catholicism, a nationalist project linking Spain to the Catholic religion, served as the basis for a model of identity-related, unitarian and anti-liberal nationalism that merged in the 1920s with the authoritarian and totalitarian European ideologies of the nation-state and the corporate social model.