The 'Columbian Exchange': How Discovering the Americas Transformed the World - SPIEGEL ONLINE

This article points out the revolutionary set of interrelated and unintended consequences of the "discovery" of the Americas by the Europeans, and the world-wide implications over time. Do you know there might have been a relationship between malaria, introduced by African slaves, and the establishment of slavery and the very battle line drawn during the Civil War. Click title for link.