That the United States stands almost alone among nations in its failure to adopt the metric system has long been blamed on conservative, reactionary forces. This paper argues against this interpretation, which passes for conventional wisdom in both academic and popular circles. It instead contends that attacks on the metric system in the late nineteenth and twentieth century originated with progressive engineers, entrepreneurs, and industrialists who had taken the lead in setting the nation's first industrial standards. Far from being backward-looking reactionaries, they enjoyed reputations as cutting-edge leaders in the development of the machine-tool industry, the railroads, and the metal-working industries. Many of them pioneered new methods of management that privileged rationality, efficiency, and systemic approaches; indeed, they strongly influenced the development of what became known as scientific management. These individuals deftly advanced their cause through the nation's political institutions, thwarting the metric cause.
