The late economic historian, Raymond Crotty, a specialist on economic development in Ireland, left a challenging work that addresses the processes of world history from the neolithic revoution up to the end of the 20th century. On the way, Crotty tried to explain phenomena as diverse as the role of pastoral migrations, India's holy cows, the decline of the Roman empire, feudalism, slavery, Britain's early modern development, the patterns of Western colonization, the lack of socio-economic development in the contemporary third world, and the developmental success of Japan and China. Crotty's interdisciplinary framework combines elements agricultural economics, nutritional science, development studies, and demography into a comprehensive theory of history that will challenge and intrigue historians, social scientists, and their students.