Book excerpt: This book is the perfect gift for anyone with an interest in our scientific history. It exposes the theories that were once widely regarded as facts but have since been proven to be complete science fiction. From such seemingly crazy ideas as the body being composed of only four things—black and yellow bile, blood, and phlegm—to the discovery of dinosaur bones being accepted as the bones of giants killed in the great flood from Biblical times. They Got It Wrong: Science tells the fascinating story behind 50 erroneous scientific theories and gives incredible perspective on how the way we view the workings of the world has evolved throughout history.