Units of measurement appear as media of social confl ict in Witold Kula’s seminal study on metrication. Given the current discussions around political epistemology, Kula’s treatment of metrology is telling. He turns the supposedly neutral auxiliary science of weights and measures into a matter of concern. The reception of his concepts in the West is outlined (history of historical metrology, the Annales school, and the history of science), and the potential of this social history of measurement in times of accelerated data production is evaluated.