We measure technological progress in oceanic shipping by using a large database of daily log entries from ships of the British and Dutch navies and East India Companies to estimate daily sailing speed in different wind conditions from 1750 to 1850. Against the consensus, dating back to North...

Although urban growth historically depended on large inflows of migrants, little is known of the process of migration in the era before railways. Here we use detailed data for Paris on women arrested for prostitution in the 1760s, or registered as prostitutes in the 1830s and 1850s; and of men...

World War 1 exacerbated the cost of the influenza epidemic of 1918-19 in two ways. First, it facilitated the spread the flu virus through the movement of clusters of infected soldiers and sailors. Second, it constrained public health measures that would have reduced mortality (as during the...