What caused Hurricane Katrina? What's inside an Eygptian Pyramid? How did the Vikings wage war? Find the answers to all these questions and more with this definitive world history for children, spanning every continent and era. Take an incredible journey through thousands of years, from the time when humans first walked on the Earth to the age of space travel. This book covers all the recent events including the Asian Tsunami and Human Genome Project. It is perfect for projects or just for fun.