Postmodern architecture emerged in the late 1970s as a rejection of the strict functionalism of modernism. It is characterized by (1) a return to decorative ornamentation and references to historical architectural styles, (2) a emphasis on contextualism and addressing the materials and forms of surrounding buildings, and (3) a rejection of modernism's doctrine that "less is more." Influential postmodern architects like Robert Venturi, Philip Johnson, and Michael Graves designed buildings that incorporated historical references and ornamentation in new ways.