Adam Hart-Davis presents this history series by tracing modern conveniences back to the civilizations that invented them, moving through the Mesopotamians, the ancient Chinese, the Greeks, the Islamic Golden Age, and the ancient Britons. Each episode picks one culture and follows a thread of ingenuity: Mesopotamia gets credit for the wheel and early writing systems, ancient Greece for early automated devices and calculating machines, and the episode on the Islamic World covers scholars who diagnosed smallpox, measles, and diabetes centuries before Europe caught up, alongside astronomers who measured the Earth's circumference and mapped the stars with an accuracy that held for generations. Hart-Davis works as an on-camera guide rather than a narrator standing outside the material, using demonstrations and period objects to show how a given innovation actually worked rather than just naming it. The series treats invention as cumulative rather than isolated to one triumphant civilization, stacking up small, specific advances in medicine, engineering, and astronomy that quietly built the world now taken for granted.