Henri-Robert-Marcel Duchamp was a French, naturalized American painter, sculptor, chess player and writer whose work is associated with Cubism, conceptual art and Dada, although he was careful about his use of the term Dada and was not directly associated with Dada groups. Duchamp is commonly regarded, along with Pablo Picasso and Henri Matisse, as one of the three artists who helped to define the revolutionary developments in the plastic arts in the opening decades of the twentieth century, res...