Meaning 'new way to perceive the real', it was a 1960s avant-garde art movement begun by the painter Yves Klein and art critic Pierre Restany. An underlying goal was bringing art and life closer together into a "a poetic recycling of urban, industrial and advertising reality". Assemblage grew out of this movement. The Apollinaire Gallery in Milan hosted the group's first exhibition, and other exhibition galleries were Sidney Janis in New York, and Gallery J in Paris. Members included Niki de Saint Phalle, Jean Tinguely, and Yves Klein, Arman, and Christo. The group dissolved in 1970. Source: Wikipedia, "Nouveau realisme".