This wide-ranging category focuses on workers and the American labor movement since the Civil War as well as other progressive and radical social movements. Taken as a whole, this category documents the efforts of labor unions and other organizations to impact American and international politics. Notable collections are records of the Knights of Labor; the AFL, CIO, and AFL-CIO; Socialist Party of America, Students for a Democratic Society, Americans for Democratic Action, and the American Jewish Congress. Events documented in this category include major labor strikes such as the Pullman Strike of 1894, the 1912 Lawrence, Massachusetts textile strike, and the National railroad yardmen's strike; presidential elections; the 1955 merger of the American Federation of Labor (AFL) and the Congress of Industrial Organizations (CIO); the 1962 Port Huron Statement by Students for a Democratic Society; and anti-Vietnam War demonstrations, including those demonstrations organized by Vietnam Veterans Against the War, such as Operation Dewey Canyon III in 1971.