Marcel Duchamp

Marcel Duchamp (1887-1968) was, with Picasso, the most important artist of the 20th century. Father of conceptual art, he was also a bemused participant in the Dada and Surrealist movecments, and--via the infamous display of his 1912 "Nude Descending a Staircase" at the Armory Show in New York--the instigator of modernism in America.