Which movement aimed to advocate for workers' rights and aimed for social revolution?

The Industrial Workers of the World (IWW) was a significant movement that aimed to advocate for workers' rights and sought a social revolution. Formed in 1905, the IWW aimed to unite all workers, regardless of their skill level, race, or gender, and emphasized the need for a radical change in the social and economic system. The IWW believed in direct action and promoted the idea of the "general strike" as a powerful tool for workers to demand better conditions, higher wages, and more rights.

Unlike other labor unions of the time, which often focused on negotiation and gradual reforms, the IWW aimed for a more profound transformation of society by empowering workers to take control of the means of production. This revolutionary ethos was articulated in their famous slogan, “An injury to one is an injury to all,” reflecting their belief in solidarity among all workers.

Considering other movements, the Knights of Labor, while also advocating for workers' rights, did not embrace the same level of revolutionary change as the IWW. Instead, they sought reforms through political action and were more inclusive in membership but less radical in approach. The American Federation of Labor (AFL), founded shortly after the IWW, focused on skilled workers and employed collective bargaining