How Discovering the Americas Transformed the World
by Johann Grolle
![The 'Columbian Exchange': How Discovering the Americas Transformed the World The 'Columbian Exchange': How Discovering the Americas Transformed the World](http://cdn3.spiegel.de/images/image-546752-panoV9free-ybzk.jpg)
Columbus' arrival in the Americas sparked the globalization of
animals, plants and microbes. A recent book takes a closer look at how
items from the New World, such as potatoes, guano and rubber, quickly
and radically transformed the rest of the planet. More..
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