Dada (/ˈdɑːdɑː/) or Dadaism was an art movement of the European avant-garde in the early 20th century, with early centers in Zürich, Switzerland at the Cabaret Voltaire (circa 1916); New York Dada began circa 1915, and after 1920 Dada flourished in Paris. Developed in reaction to World War I, the Dada movement consisted of artists who rejected the logic, reason, and aestheticism of modern capitalist society, instead expressing nonsense, irrationality, and anti-bourgeois protest in their works. The art of the movement spanned visual, literary, and sound media, including collage, sound poetry, cut-up writing, and sculpture. Dadaist artists expressed their discontent with violence, war, and nationalism, and maintained political affinities with the radical left.
There is no consensus on the origin of the movement's name; a common story is that the Austrian artist Richard Huelsenbeck plunged a knife at random into a dictionary, where it landed on "dada", a colloquial French term for a hobby horse. Others note that it suggests the first words of a child, evoking a childishness and absurdity that appealed to the group. Still others speculate that the word might have been chosen to evoke a similar meaning (or no meaning at all) in any language, reflecting the movement's internationalism.