Includes bibliographical references and index.

"An exciting and humorous take on twenty pivotal moments of history and what would have happened if things had gone differently--from World War I (what if Kaiser Wilhelm had stopped the war?) to Alexander the Great (what if the world's greatest conqueror had a male heir?) to the European colonization of North America (what if the Vikings had stayed?). Readers will not only learn what really happened and why, but also how tiny differences could have...