Hitler's belief that abstract, Dadaist, expressionist and modern art were decadent became the basis for policy.[464] Many art museum directors lost their posts in 1933 and were replaced by party members.[465] Some 6,500 modern works of art were removed from museums and replaced with works chosen by a Nazi jury.[466] Exhibitions of the rejected pieces, under titles such as "Decadence in Art", were launched in sixteen different cities by 1935.