Cubism the 1950s and 1960s, especially by Clement Greenberg. Contemporary views of Cubism are complex, formed to some extent in response to the "Salle 41" Cubists, whose methods were too distinct from those of Picasso and Braque to be considered merely secondary to them. Alternative interpretations of Cubism have therefore developed. Wider views of Cubism include artists who were later associated with the "Salle 41" artists, e.g., Francis Picabia; the brothers Jacques Villon, Raymond Duchamp-Villon and Marcel Duchamp, who beginning in late 1911 formed the core of the Section d'Or (or the Puteaux Group); the sculptors Alexander Archipenko, Joseph Csaky and
Western use of the swastika in the early 20th century luck. The swastika's worldwide use was well documented in an 1894 publication by the Smithsonian. The symbol appeared in many popular, non-political Western designs from the 1880s to the 1920s, with occasional use continuing into the 1930s. Western use of the motif was subverted in the early 20th century after it was adopted as the emblem of the Nazi Party (). The swastika was used as a conveniently geometrical and eye-catching symbol to emphasise the so-called Aryan-German correspondence and instill racial pride. Since World War II, most Westerners have known the swastika as a Nazi symbol, leading to confusion about