How the Wheel Changed History examines the ancient origins of the wheel and explores the many inventions--from the spinning wheel to the phonograph--made possible by the simple machine. Features include essential facts, a glossary, selected bibliography, websites, source notes, and an index, plus a timeline and maps, charts, and diagrams. Aligned to Common Core Standards and correlated to state standards. Essential Library is an imprint of Abdo Publishing, a division of ABDO.