1922-2011 1929- 1938-2011 1940- 1940-2017 1946- 1952-2013 1954- 1963- 20thcentury architectureandsociety art artistsandmuseums claes conceptualart dennis exhibitions exhibitiontechniques fred förg gillian günther hamilton installations(art) jeff kenny modern motives museumsinart oldenburg oppenheim richard schachter sexinart themes unitedstates violenceinart vito wall wearing wilson