 Tange considers the period from 1920 to 1960 under the heading of "Functionalism" and the time from 1960 onwards under the heading of "Structuralism".Le Corbusier created several early projects and built prototypes in a Structuralist mode, some of them dating back to the 1920s.Although he was criticized by the members of Team 10 in the 1950s for certain aspects of his work (urban concept without a "sense of place" and the dark interior streets of the Unité), they nevertheless acknowledged him as a great model and creative personality in architecture and art.