When Columbus was born in the mid-fifteenth century, Europe was largely isolated from the rest of the Old World - Africa and Asia - and ignorant of the existence of the world of the Western Hemisphere. The voyages of Christopher Columbus opened a period of European exploration and empire building that breached the boundaries of those isolated worlds and changed the course of human history. This book describes the life and times of Christopher Columbus on the 500th anniversary of his first voyage across the Atlantic Ocean in 1492.