The automobile. The microscope. The Internet. Without these amazing inventions, our lives would be totally different. But how did these cool creations come to be? And who were the inventors that dreamed them up? Go behind the scenes of history-and learn the truth about the gadgets and tools that changed the world. Packed with quizzes, photos, and zillions of wacky facts, this chronicle of jaw-dropping discoveries might even inspire you to invent something...