This refers to a defining movement in early 20th art,pioneered by Pablo Picasso and Georges Braque. The name is based on Henri Matise and Louis Vauxcelles's remark that Georges Braque's painting,Houses at L'Estaque,looked like it was composed of cubes. Cubism rejected the single point perspective that had been in vogue since the Renaissance as well as the need for art to faithfully portray the real world as it was.Instead it celebrated thetwo dimensional nature of the canvas,representing an object from multiple perspectives using planes. Cubism evolved in two stages-analytical cubism and synthetic cubism.