Only 100 years ago the main means of transportation in Iran was by quadruped. Transportation & Technology in Iran, 1800-1940, by renowned Iranian studies scholar Willem Floor is an in-depth, illustrated, four-part study of the subject. Until the 1920s Iran had no more than 700 kilometers of roads suitable for motor vehicles, which situation greatly impeded Iran's economic development. Caravans traveled 40 km/day, though travelers...