Vorticism was a short-lived early 20th century modernist movement in Britain that was inspired by Cubism. Key figures included David Bomberg and Wyndham Lewis. Vorticism featured abstract, geometric styles. Dada was an anti-war, anti-bourgeois art movement that began in Zurich during World War I. Key figures included Tristan Tzara, Jean Arp, and Marcel Duchamp. Dadaism used techniques like cut-up words, chance operations, and found objects to subvert traditional artistic conventions. Marcel Duchamp pioneered the concept of the "readymade" artwork by selecting mundane mass-produced objects and designating them as art.