It was not until 40, 000 years ago that they began to re-establish conjugal relations, possibly as a result of the technological revolution of the Late Stone Age, which yielded new and more finely crafted tools.
Moreover, for all the rhetoric of functionalism, even in their own time the most notable 1920s and '30s Bauhaus buildings and objects were really aesthetic explorations of new materials and techniques, or conceptual critiques of life in an industrial age--rather than technological inventions or discoveries in the scientific sense.