New York Dada had a less serious tone than that of Europe, and wasn't a particularly organized venture. Duchamp's friend Picabia connected with the Dada group in Zürich, bringing to New York the Dada ideas of absurdity and anti-art. Together with Man Ray and many from the group that met almost nightly at the Arensberg home or caroused in Greenwich Village, Duchamp contributed his ideas about art and his humor to the New York activities, much of which ran concurrent with the development of readymades and The Large Glass.

Duchamp and Dada are most often connected by his submission of Fountain, a urinal, to the Society of Independent Artists exhibit in 1917. The Independent Artists shows were unjuried and all pieces that were submitted were displayed. However, the show committee said that Fountain was not art and rejected it from the show causing an uproar amongst the Dadaists and led Duchamp to resign from the board of the Independent Artists.

Along with Henri-Pierre Roché and Beatrice Wood, Duchamp published New York's Dada's magazine, The Blind Man which included art, literature, humor and commentary.

Courtesy of Wikipedia