Download or read book 1493 written by Charles C. Mann and published by Knopf. This book was released on 2011 with total page 561 pages. Available in PDF, EPUB and Kindle. Book excerpt: More than 200 million years ago, geological forces split apart the continents. Isolated from each other, the two halves of the world developed totally different suites of plants and animals. Columbus's voyages brought them back together--and marked the beginning of an extraordinary exchange of flora and fauna between Eurasia and the Americas.