In January 1955, Architectural Design magazine published its first full-page article on New Brutalism. The article, coauthored by Alison and Peter Smithson and Theo Crosby, asserted that the movement could be attributed to a number of sources: a reevaluation of certain Modernist buildings of the 1920s and 30s, an interest in the work of the architectural historian Rudolf Wittkower, and a respect for traditional Japanese architecture. By focusing on the collaboration between Crosby and the Smithsons, this article highlights the importance they gave to Japanese architecture, which became for them a prism through which to reflect on Modernism and hence on their own work. The article retraces the debates between Peter Reyner Banham, the Smithso...