Hannah Hoch - Cut with the Kitchen Knife Through the First Epoch of the Weimar Beer-Belly Culture - 1919
----- Francis Picabia - Dada Zurich - 1917
----------Marcel Duchamp - Fountain - 1917 (photo, Alfred Steiglitz)

Dada. Anti-art movement born from the horrors of World War I, it ran more or less from 1916-1924. Manifestos by Hugo Ball and Tristan Tzara.

We had lost confidence in our culture. Everything had to be demolished. We would begin again after the "tabula rasa". At the Cabaret Voltaire [Zurich] we began by shocking common sense, public opinion, education, institutions, museums, good taste, in short, the whole prevailing order.
- Marcel Janco