Dadaism was an early 20th century avant-garde art movement that was founded in Zurich in 1916 in reaction to World War I. It rejected reason and logic and emphasized chaos and irrationality through anti-art styles and shock value. Some of the most famous Dadaists included Marcel Duchamp, whose "Fountain" was a urinal signed and submitted as a sculpture, Max Ernst, known for his surreal collage paintings, and Francis Picabia, who formed a Dada group in Barcelona and created the painting "Amorous Parade."