Understanding mortality crises is an important part of understanding some fundamental aspects of preindustrial economies. Understanding the processes leading to their decline and the associated improvements in living standards and life expectancy is a precondition for knowing what is needed to...

Earlier research on poverty failed to provide us with consistent measures of its prevalence across space and time. This is due to the limitations of the available sources and to the difficulty of applying to them the poverty definitions of modern social science. This article discusses different...