This paper argues that the secular decline in mortality, which began during the eighteenth century, is still in progress and will probably continue for another century or more. The evolutionary perspective presented in this paper focuses not only on the environment, which from the standpoint of...

This paper summarizes a collaborative project designed to create a public-use tape suitable for a prospective study of aging among a random sample of 39,616 men mustered into 331 companies of the Union Army. The aim of the project is to measure the effect of socioeconomics and biomedical factors...

The aim of this paper is to break open the stochastic component of a maj or political change and to show that what seems like the product of purely chance events is the particular conjunction of processes, each of which is definable in a systematic way, that provide collectively a favorable...

The six principal findings of this paper are as follows: (1) crisis mortality accounted for less than 5 percent of total mortality in England prior to 1800 and the elimination of crisis mortality accounted for just 15 percent of the decline in total mortality between the eighteenth and...