An artistic movement, which came into being around 1909, led by Picasso and Braque, with its origins in the theories of Cézanne. It represented an attempt to portray in three dimensions, on a flat surface, every aspect of what the artists saw. There are two forms of Cubism. Analytic Cubism sets out to show different aspects of the same object at the same time, while abandoning conventional perspective and making use of facets, which overlap each other. Collage was one means of introducing "raw" reality to interrupt the 2-D nature of the technique. Synthetic Cubism - made use of Cubist analysis and translated everything perceived to a language consisting of visual signs. It invested any object with a coded equivalent and transformed painting into a parallel to reality, instead of making it a reflection of the reality, which the painter observed.