Modern Architecture died in St. Louis, Missouri, on July 15, 1972, at 3.32 p.m. (or thereabouts), when the infamous Pruitt Igoe scheme, or rather several of its slab blocks, were given the final coup de grace by dynamite.
Charles Jencks (2012). “The Story of Post-Modernism: Five Decades of the Ironic, Iconic and Critical in Architecture”, p.1, John Wiley & Sons
