Like America itself, the architecture of the United States is an amalgam, an imitation or an importation of foreign forms adapted to the natural or engineered landscape of the New World. So can there be an "American School" of architecture? The most legitimate claim to the title emerged in the 1950s and 1960s at the Gibbs College of Architecture at the University of Oklahoma, where, under the leadership of Bruce Goff, Herb Greene, Mendel Glickman, and others, an authentically American approach to design found its purest expression, teachable in its coherence and logic.