The historical fertility transition is one of the most important events in economic history. This study provides new evidence on the role that ideas about family planning played in this transition. We begin by documenting a link between the famous Bradlaugh-Besant trial that took place in...

This study provides new evidence on the impact of air pollution in London over the century from 1866-1965. To identify weeks with elevated pollution levels I use new data tracking the timing of London's famous fog events, which trapped emissions in the city. These events are compared to detailed...

This article develops a method for quantitatively tracking the agenda of the British Parliament--by which I mean the substantive topics on which Parliamentary debate was focused--from 1810-2005 using descriptions of 1.7 million Parliamentary debates from the Parliamentary Hansard. This provides...

Digitized historical newspaper databases offer a valuable research tool. A rapidly expanding set of studies use these databases to address a wide range of topics. We review this literature and provide a toolkit for researchers interested in working with historical newspaper data. We provide a...