Daniel De Leon
Syndicalism Precursors Guild socialism Utopian socialism Revolutions of 1848 Orthodox Marxism Variants Anarcho-syndicalism Syndical communism Green syndicalism Economics Co-operative economics Corporatism Labour Labour rights Mass strike Workers' self-management Labour unionisation Mutual aid Organisations Federación Obrera Regional Argentina Solidaridad Obrera Industrial Workers of the World Brazilian Workers Confederation Confederación Nacional del Trabajo Industrial Syndicalist Education League Syndicalist League of North America International Socialist League Norsk Syndikalistisk Forbund International Workers' Association National Libertarian Federation of Trade Unions Freie Arbeiterinnen- und Arbeiter-Union Confederación General del Trabajo Solidaridad Obrera Solidarity Federation Konfederatsiya Revolyutsionnikh Anarkho-Sindikalistov Leaders Daniel De Leon Victor Griffuelhes Hubert Lagardelle Juan García Oliver Rudolf Rocker Georges Sorel Fernand Pelloutier James Thompson Bain Mary Fitzgerald Related subjects Criticism of capitalism Infoanarchism Post-capitalism Criticism of copyright Libertarian socialism Criticism of wage labour Labour power Revisionism Copyleft Syndicalism Labour economics v t e Daniel De Leon (December 14, 1852 – May 11, 1914) was an American socialist newspaper editor, politician, Marxist theoretician, and trade union organizer. He is regarded as the forefather of the idea of revolutionary industrial unionism and was the leading figure in the Socialist Labor Party of America from 1890 until the time of his death.