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.
Franz Boas Franz Uri Boas (/ˈfrɑːnz ˈboʊ.æz/; German: [ˈboːas]; July 9, 1858 – December 21, 1942)[2] was a German-American[3] anthropologist and a pioneer of modern anthropology who has been called the "Father of American Anthropology".[4][5] His work is associated with the movement of anthropological historicism.[6]