Collage arose at the start of the 1910s. One of the first artists to make use of collages was Pablo Picasso; other artists quickly followed suit, including the Dadaists, who cultivated the absurd and meaningless. In about 1920 some Dadaists were inspired by Sigmund Freud’s psychoanalysis, and this was the start of surrealism. The artists took collage techniques with them to surrealism, where they wanted to use collages to make contact with ‘the subconscious’. The strange clash between the elements in surrealistic collages often resembles those found in dreams. (Collage: Pablo Picasso: Bottle of Vieux Marc, Glass, Guitar and Newspaper (1913)) 