What do eyeglasses, fossils, chewing gum, and color television all have in common? They all have histories in North America, one of Earth's seven continents. In this exciting learning adventure, you'll discover these great inventions and more from ancient and modern North America! The engaging Discoveries Around the World series invites young readers to learn about fascinating people, places, and inventions from each continent on Earth. Covering ancient history to the present day, each 32-page book features helpful maps and vivid photographs that bring each place to life. From art and science to history and technology, discover how each continent's great minds and finds have influenced our world. Each book also includes after-reading questions, glossary, index, and an extension activity.