1968: the year in Europe and the United States the mass protests against the political and cultural establishment, against the war in Vietnam, against public and private authorities reached their peak. 1968: the year in Germany "extra-parliamentary opposition" failed in its attempt to make relevant State and political changes seen his consolidated power. 1965-1975: a period that fundamentally challenged the notion of art that tells the postwar period. It was also around 1968 that invented a phenomenon to which they gave the name of "contemporary art". Not even suspected that the revolution could prove to be conservative.