The first Cubist exhibition took place in 1911 at the Salon des Independents, Paris and its origins have been tracked back as far as 1901. Cubism was pioneered by Picasso and Braque and was initially indebted to Cezanne's use of multiple viewpoints in a single painting. The way Cubists represented objects was considered to be radical. Their subject matter was often highly conventional and usually drawn from still life tradition.