berlin dada artists created a variation on collage called
Dada In February 1918, while the Great War was approaching its climax, Huelsenbeck gave his first Dada speech in Berlin, and he produced a Dada manifesto later in the year. Following the October Revolution in Russia, by then out of the war, Hannah Höch and George Grosz used Dada to express communist sympathies. Grosz, together with John Heartfield, Höch and Hausmann developed the technique of photomontage during this period.
Alfred Stieglitz Alfred Stieglitz (January 1, 1864 â€“ July 13, 1946) was an American photographer and modern art promoter who was instrumental over his fifty-year career in making photography an accepted art form. In addition to his photography, Stieglitz was known for the New York art galleries that he ran in the early part of the 20th century, where he introduced many avant-garde European artists to the U.S. He was married to painter Georgia O'Keeffe.