54:03
A history of social classes
Marx divided the industrial world into two antagonistic classes: the bourgeois and the proletariat. In today's society, this simple dichotomy fails to capture the many segments of a global marketplace. From the communal hunter/gatherers and agrarian...
52:27
The Environment: A Historical Perspective
From the first agricultural settlements, to the industrial revolution, to agribusiness and widespread urbanization, humans have been transforming the environment for thousands of years. But now, with rain forests disappearing at an appalling rate, p...