Follow the timeline to get a unique picture of how scientific discoveries were made. Take a thrilling ride through history and discover how scientists changed the world, from steady advances in technology to sudden leaps in understanding. This innovative guide brings breakthroughs and discoveries to life, putting events in context and explaining key ideas in clear language. Discover how our world has been radically transformed by chemistry, biology, and physics, from the discovery of fire and the wheel, right through to genetic engineering and the Information Age.