B. 1887-1966 - French sculptor, painter, collagist, printmaker and poet of German birth. The son of a German father and French Alsatian mother, he developed a cosmopolitan outlook from an early age and as a mature artist maintained close contact with the avant-garde throughout Europe. He was a pioneer of abstract art and one of the founders of Dada in Zurich, but he also participated actively in both Surrealism and Constructivism. While he prefigured junk art and the Fluxus movement in his incorporation of waste material, it was through his investigation of biomorphism and of chance and accident that he proved especially influential on later 20th-century art in liberating unconscious creative forces.