A painter, photographer, printmaker, choreographer, onstage performer, set designer and, in later years, even a composer, Mr. Rauschenberg defied the traditional idea that an artist stick to one medium or style. He pushed, prodded and sometimes reconceived all the mediums in which he worked.
Building on the legacies of Marcel Duchamp, Kurt Schwitters, Joseph Cornell and others, he thereby helped to obscure the lines between painting and sculpture, painting and photography, photography and printmaking, sculpture and photography, sculpture and dance, sculpture and technology, technology and performance art — not to mention between art and life.
Mr. Rauschenberg was also instrumental in pushing American art onward from Abstract Expressionism, the dominant movement when he emerged during the early 1950s. He became a transformative link between artists like Jackson Pollock and Willem de Kooning and those who came next, artists identified with Pop, Conceptualism, Happenings, Process Art and other new kinds of art in which he played a signal role.