The Urinal is the first great feminist work of art, created by Elsa von Freytag-Loringhoven in 1917 as a protest against America’s declaration of war on Germany. Long after she died, Duchamp appropriated it and robbed it of its meaning. This fact, known since 1982 but ignored by the art world, changes the history of conceptual art.

Discover the ‘urmutter’ of modernism, a great neglected feminist artist and watch all the myths about modern art evaporate before your eyes.