Mary B. Woods & Michael Woods 
Transportation through the Ages [PDF ebook] 
From Stirrups to Steam

The ancient world saw many empires rise and fall. But how did massive empires such as Babylon or Rome move information and resources across continents? They relied on one of the oldest technologies in human history: transportation.Ever since humans first began migrating within and outside of Africa, they have needed transportation technology to help move themselves and their possessions. Beginning with shoes to support feet over rough ground and boats to traverse water, humans quickly created a wide range of inventions to help them move faster and carry more over long distances.From prehistoric hunting paths to the widespread highways of Rome, learn about the ancient transportation methods that shaped human history and paved the way for planes, trains, and superhighways.